The Hacker's Dictionary

Versió HTML de Lluís de Yzaguirre i Maura

Institut de Lingüística Aplicada - Universitat "Pompeu Fabra"
e-mail: de_yza @ upf.es


face time
========= n. Time spent interacting with somebody face-to-face (as
opposed to via electronic links). "Oh, yeah, I spent some face
time with him at the last Usenix."
factor
====== n. See coefficient of X.
fall over
========= [IBM] vi. Yet another synonym for crash or lose.
`Fall over hard' equates to crash and burn.
fall through
============ v. (n. `fallthrough', var. `fall-through')
1. To exit a loop by exhaustion, i.e., by having fulfilled its exit
condition rather than via a break or exception condition that exits
from the middle of it. This usage appears to be *really* old,
dating from the 1940s and 1950s. 2. To fail a test that would have
passed control to a subroutine or some other distant portion of
code. 3. In C, `fall-through' occurs when the flow of execution in
a switch statement reaches a `case' label other than by
jumping there from the switch header, passing a point where one
would normally expect to find a `break'. A trivial example:

switch (color)
[
case GREEN:
do_green();
break;
case PINK:
do_pink();
/* FALL THROUGH */
case RED:
do_red();
break;
default:
do_blue();
break;
}

The variant spelling `/* FALL THRU */' is also common.

The effect of the above code is to `do_green()' when color is
`GREEN', `do_red()' when color is `RED',
`do_blue()' on any other color other than `PINK', and
(and this is the important part) `do_pink()' *and then*
`do_red()' when color is `PINK'. Fall-through is
considered harmful by some, though there are contexts (such as
the coding of state machines) in which it is natural; it is
generally considered good practice to include a comment
highlighting the fall-through where one would normally expect a
break. See also [Duff's Device].

fan
=== n. Without qualification, indicates a fan of science
fiction, especially one who goes to cons and tends to hang out
with other fans. Many hackers are fans, so this term has been
imported from fannish slang; however, unlike much fannish slang it
is recognized by most non-fannish hackers. Among SF fans the
plural is correctly `fen', but this usage is not automatic to
hackers. "Laura reads the stuff occasionally but isn't really a
fan."
fandango on core
================ [UNIX/C hackers, from the Mexican dance] n.
In C, a wild pointer that runs out of bounds, causing a [core
dump}, or corrupts the `malloc(3)' arena in such a way as
to cause mysterious failures later on, is sometimes said to have
`done a fandango on core'. On low-end personal machines without an
MMU, this can corrupt the OS itself, causing massive lossage.
Other frenetic dances such as the rhumba, cha-cha, or watusi, may
be substituted. See aliasing bug, precedence lossage,
smash the stack, memory leak, memory smash,
overrun screw, core.
FAQ
=== /F-A-Q/ or /fak/ [USENET] n. 1. A Frequently Asked Question.
2. A compendium of accumulated lore, posted periodically to
high-volume newsgroups in an attempt to forestall such questions.
Some people prefer the term `FAQ list' or `FAQL' /fa'kl/,
reserving `FAQ' for sense 1.

This lexicon itself serves as a good example of a collection of one
kind of lore, although it is far too big for a regular FAQ
posting. Examples: "What is the proper type of NULL?" and
"What's that funny name for the `#' character?" are both
Frequently Asked Questions. Several FAQs refer readers to
this file.

FAQ list
======== /F-A-Q list/ or /fak list/ [USENET] n. Syn FAQ,
sense 2.
FAQL
==== /fa'kl/ n. Syn. FAQ list.
faradize
======== /far'*-di:z/ [US Geological Survey] v. To start any
hyper-addictive process or trend, or to continue adding current to
such a trend. Telling one user about a new octo-tetris game you
compiled would be a faradizing act --- in two weeks you might find
your entire department playing the faradic game.
farkled
======= /far'kld/ [DeVry Institute of Technology, Atlanta] adj.
Syn. hosed. Poss. owes something to Yiddish `farblondjet'
and/or the `Farkle Family' skits on Saturday Nite Live.
farming
======= [Adelaide University, Australia] n. What the heads of a
disk drive are said to do when they plow little furrows in the
magnetic media. Associated with a crash. Typically used as
follows: "Oh no, the machine has just crashed; I hope the hard
drive hasn't gone farming again."
fascist
======= adj. 1. Said of a computer system with excessive or
annoying security barriers, usage limits, or access policies. The
implication is that said policies are preventing hackers from
getting interesting work done. The variant `fascistic' seems to
have been preferred at MIT, poss. by analogy with `touristic'
(see tourist). 2. In the design of languages and other
software tools, `the fascist alternative' is the most restrictive
and structured way of capturing a particular function; the
implication is that this may be desirable in order to simplify the
implementation or provide tighter error checking. Compare
bondage-and-discipline language, although that term is global
rather than local.
fat electrons
============= n. Old-time hacker David Cargill's theory on the
causation of computer glitches. Your typical electric utility
draws its line current out of the big generators with a pair of
coil taps located near the top of the dynamo. When the normal tap
brushes get dirty, they take them off line to clean them up, and use
special auxiliary taps on the *bottom* of the coil. Now,
this is a problem, because when they do that they get not ordinary
or `thin' electrons, but the fat'n'sloppy electrons that are
heavier and so settle to the bottom of the generator. These flow
down ordinary wires just fine, but when they have to turn a sharp
corner (as in an integrated-circuit via), they're apt to get stuck.
This is what causes computer glitches. [Fascinating. Obviously,
fat electrons must gain mass by bogon absorption --- ESR]
Compare bogon, magic smoke.
faulty
====== adj. Non-functional; buggy. Same denotation as
bletcherous, losing, q.v., but the connotation is much
milder.
fd leak
======= /F-D leek/ n. A kind of programming bug analogous to a
core leak, in which a program fails to close file descriptors
(`fd's) after file operations are completed, and thus eventually
runs out of them. See leak.
fear and loathing
================= [from Hunter S. Thompson] n. A state inspired by the
prospect of dealing with certain real-world systems and standards
that are totally brain-damaged but ubiquitous --- Intel 8086s,
or COBOL, or "EBCDIC", or any IBM machine except the
Rios (a.k.a. the RS/6000). "Ack! They want PCs to be able to
talk to the AI machine. Fear and loathing time!"
feature
======= n. 1. A good property or behavior (as of a program).
Whether it was intended or not is immaterial. 2. An intended
property or behavior (as of a program). Whether it is good or not
is immaterial (but if bad, it is also a misfeature). 3. A
surprising property or behavior; in particular, one that is
purposely inconsistent because it works better that way --- such an
inconsistency is therefore a feature and not a bug. This
kind of feature is sometimes called a miswart; see that entry
for a classic example. 4. A property or behavior that is
gratuitous or unnecessary, though perhaps also impressive or cute.
For example, one feature of Common LISP's `format' function is
the ability to print numbers in two different Roman-numeral formats
(see bells, whistles, and gongs). 5. A property or behavior
that was put in to help someone else but that happens to be in your
way. 6. A bug that has been documented. To call something a
feature sometimes means the author of the program did not consider
the particular case, and that the program responded in a way that
was unexpected but not strictly incorrect. A standard joke is that
a bug can be turned into a feature simply by documenting it
(then theoretically no one can complain about it because it's in
the manual), or even by simply declaring it to be good. "That's
not a bug, that's a feature!" is a common catchphrase. See also
feetch feetch, creeping featurism, wart, [green
lightning}.

The relationship among bugs, features, misfeatures, warts, and
miswarts might be clarified by the following hypothetical exchange
between two hackers on an airliner:

A: "This seat doesn't recline."

B: "That's not a bug, that's a feature. There is an emergency
exit door built around the window behind you, and the route has to
be kept clear."

A: "Oh. Then it's a misfeature; they should have increased the
spacing between rows here."

B: "Yes. But if they'd increased spacing in only one section it
would have been a wart --- they would've had to make
nonstandard-length ceiling panels to fit over the displaced
seats."

A: "A miswart, actually. If they increased spacing throughout
they'd lose several rows and a chunk out of the profit margin. So
unequal spacing would actually be the Right Thing."

B: "Indeed."

`Undocumented feature' is a common, allegedly humorous euphemism
for a bug.

feature creature
================ [poss. fr. slang `creature feature' for a
horror movie] n. 1. One who loves to add features to designs or
programs, perhaps at the expense of coherence, concision, or
taste. 2. Alternately, a mythical being that induces
otherwise rational programmers to perpetrate such crocks. See also
feeping creaturism, creeping featurism.
feature key
=========== n. The Macintosh key with the cloverleaf graphic on
its keytop; sometimes referred to as `flower', `pretzel',
`clover', `propeller', `beanie' (an apparent reference to the
major feature of a propeller beanie), splat, or the `command
key'. The Mac's equivalent of an alt key (and so labeled on
on some Mac II keyboards). The proliferation of terms for this
creature may illustrate one subtle peril of iconic interfaces.

Many people have been mystified by the cloverleaf-like symbol that
appears on the feature key. Its oldest name is `cross of St.
Hannes', but it occurs in pre-Christian Viking art as a decorative
motif. Throughout Scandinavia today the road agencies use it to
mark sites of historical interest. Apple picked up the symbol from
an early Mac developer who happened to be Swedish. Apple
documentation gives the translation "interesting feature"!

There is some dispute as to the proper (Swedish) name of this
symbol. It technically stands for the word `sev"ardhet'
(interesting feature) many of these are old churches. Some Swedes
report as an idiom for it the word `kyrka', cognate to English
`church' and Scots-dialect `kirk' but pronounced /shir'k*/ in
modern Swedish. Others say this is nonsense.

feature shock
============= [from Alvin Toffler's book title "Future
Shock"] n. A user's (or programmer's!) confusion when confronted
with a package that has too many features and poor introductory
material.
featurectomy
============ /fee`ch*r-ek't*-mee/ n. The act of removing a
feature from a program. Featurectomies come in two flavors, the
`righteous' and the `reluctant'. Righteous featurectomies are
performed because the remover believes the program would be more
elegant without the feature, or there is already an equivalent and
better way to achieve the same end. (Doing so is not quite the
same thing as removing a misfeature.) Reluctant
featurectomies are performed to satisfy some external constraint
such as code size or execution speed.
feep
==== /feep/ 1. n. The soft electronic `bell' sound of a
display terminal (except for a VT-52); a beep (in fact, the
microcomputer world seems to prefer beep). 2. vi. To cause
the display to make a feep sound. ASR-33s (the original TTYs) do
not feep; they have mechanical bells that ring. Alternate forms:
beep, `bleep', or just about anything suitably
onomatopoeic. (Jeff MacNelly, in his comic strip "Shoe", uses
the word `eep' for sounds made by computer terminals and video
games; this is perhaps the closest written approximation yet.) The
term `breedle' was sometimes heard at SAIL, where the terminal
bleepers are not particularly soft (they sound more like the
musical equivalent of a raspberry or Bronx cheer; for a close
approximation, imagine the sound of a Star Trek communicator's beep
lasting for five seconds). The `feeper' on a VT-52 has been
compared to the sound of a '52 Chevy stripping its gears. See also
ding.
feeper
====== /fee'pr/ n. The device in a terminal or workstation (usually
a loudspeaker of some kind) that makes the feep sound.
feeping creature
================ [from feeping creaturism] n. An unnecessary
feature; a bit of chrome that, in the speaker's judgment, is
the camel's nose for a whole horde of new features.
feeping creaturism
================== /fee'ping kree`ch*r-izm/ n. A deliberate
spoonerism for creeping featurism, meant to imply that the
system or program in question has become a misshapen creature of
hacks. This term isn't really well defined, but it sounds so neat
that most hackers have said or heard it. It is probably reinforced
by an image of terminals prowling about in the dark making their
customary noises.
feetch feetch
============= /feech feech/ interj. If someone tells you about
some new improvement to a program, you might respond: "Feetch,
feetch!" The meaning of this depends critically on vocal
inflection. With enthusiasm, it means something like "Boy, that's
great! What a great hack!" Grudgingly or with obvious doubt, it
means "I don't know; it sounds like just one more unnecessary and
complicated thing". With a tone of resignation, it means, "Well,
I'd rather keep it simple, but I suppose it has to be done".
fence
===== n. 1. A sequence of one or more distinguished
(out-of-band) characters (or other data items), used to
delimit a piece of data intended to be treated as a unit (the
computer-science literature calls this a `sentinel'). The NUL
(ASCII 0000000) character that terminates strings in C is a fence.
Hex FF is also (though slightly less frequently) used this way.
See zigamorph. 2. An extra data value inserted in an array or
other data structure in order to allow some normal test on the
array's contents also to function as a termination test. For
example, a highly optimized routine for finding a value in an array
might artificially place a copy of the value to be searched for
after the last slot of the array, thus allowing the main search
loop to search for the value without having to check at each pass
whether the end of the array had been reached. 3. [among users of
optimizing compilers] Any technique, usually exploiting knowledge
about the compiler, that blocks certain optimizations. Used when
explicit mechanisms are not available or are overkill. Typically a
hack: "I call a dummy procedure there to force a flush of the
optimizer's register-coloring info" can be expressed by the
shorter "That's a fence procedure".
fencepost error
=============== n. 1. A problem with the discrete equivalent of a
boundary condition, often exhibited in programs by iterative
loops. From the following problem: "If you build a fence 100 feet
long with posts 10 feet apart, how many posts do you need?"
(Either 9 or 11 is a better answer than the obvious 10.) For
example, suppose you have a long list or array of items, and want
to process items m through n; how many items are there? The
obvious answer is n - m, but that is off by one; the right
answer is n - m + 1. A program that used the `obvious'
formula would have a fencepost error in it. See also zeroth
and off-by-one error, and note that not all off-by-one errors
are fencepost errors. The game of Musical Chairs involves a
catastrophic off-by-one error where N people try to sit in
N - 1 chairs, but it's not a fencepost error. Fencepost
errors come from counting things rather than the spaces between
them, or vice versa, or by neglecting to consider whether one
should count one or both ends of a row. 2. [rare] An error
induced by unexpected regularities in input values, which can (for
instance) completely thwart a theoretically efficient binary tree or
hash table implementation. (The error here involves the difference
between expected and worst case behaviors of an algorithm.)
fepped out
========== /fept owt/ adj. The Symbolics 3600 LISP Machine has a
Front-End Processor called a `FEP' (compare sense 2 of box).
When the main processor gets wedged, the FEP takes control of
the keyboard and screen. Such a machine is said to have
`fepped out' or `dropped into the fep'.
FidoNet
======= n. A worldwide hobbyist network of personal computers
which exchanges mail, discussion groups, and files. Founded in 1984
and originally consisting only of IBM PCs and compatibles, FidoNet
now includes such diverse machines as Apple ][s, Ataris, Amigas,
and UNIX systems. Though it is much younger than USENET,
FidoNet is already (in early 1991) a significant fraction of
USENET's size at some 8000 systems.
field circus
============ [a derogatory pun on `field service'] n. The field
service organization of any hardware manufacturer, but especially
DEC. There is an entire genre of jokes about DEC field circus
engineers:

Q: How can you recognize a DEC field circus engineer
with a flat tire?
A: He's changing one tire at a time to see which one is flat.

Q: How can you recognize a DEC field circus engineer
who is out of gas?
A: He's changing one tire at a time to see which one is flat.

[See Easter egging for additional insight on these jokes.]

There is also the `Field Circus Cheer' (from the plan file for
DEC on MIT-AI):

Maynard! Maynard!
Don't mess with us!
We're mean and we're tough!
If you get us confused
We'll screw up your stuff.

(DEC's service HQ is located in Maynard, Massachusetts.)

field servoid
============= [play on `android'] /fee'ld ser'voyd/ n.
Representative of a field service organization (see [field
circus}). This has many of the implications of droid.
Fight-o-net
=========== [FidoNet] n. Deliberate distortion of FidoNet,
often applied after a flurry of flamage in a particular
echo, especially the SYSOP echo or Fidonews (see 'Snooze).
File Attach
=========== [FidoNet] 1. n. A file sent along with a mail message
from one BBS to another. 2. vt. Sending someone a file by using
the File Attach option in a BBS mailer.
File Request
============ [FidoNet] 1. n. The FidoNet equivalent of
FTP, in which one BBS system automatically dials another and
snarfs one or more files. Often abbreviated `FReq'; files
are often announced as being "available for FReq" in the same way
that files are announced as being "available for/by anonymous
FTP" on the Internet. 2. vt. The act of getting a copy of a file
by using the File Request option of the BBS mailer.
file signature
============== n. A magic number, sense 3.
filk
==== /filk/ [from SF fandom, where a typo for `folk' was
adopted as a new word] n.,v. A popular or folk song with lyrics
revised or completely new lyrics, intended for humorous effect when
read, and/or to be sung late at night at SF conventions. There is a
flourishing subgenre of these called `computer filks', written by
hackers and often containing rather sophisticated technical humor.
See double bucky for an example. Compare grilf,
hing and newsfroup.
film at 11
========== [MIT: in parody of TV newscasters] 1. Used in
conversation to announce ordinary events, with a sarcastic
implication that these events are earth-shattering. ""ITS"
crashes; film at 11." "Bug found in scheduler; film at 11."
2. Also widely used outside MIT to indicate that additional
information will be available at some future time, *without*
the implication of anything particularly ordinary about the
referenced event. For example, "The mail file server died this
morning; we found garbage all over the root directory. Film at
11." would indicate that a major failure had occurred but that the
people working on it have no additional information about it as
yet; use of the phrase in this way suggests gently that the problem
is liable to be fixed more quickly if the people doing the fixing
can spend time doing the fixing rather than responding to
questions, the answers to which will appear on the normal "11:00
news", if people will just be patient.
filter
====== [orig. "UNIX", now also in "MS-DOS"] n. A program that
processes an input data stream into an output data stream in some
well-defined way, and does no I/O to anywhere else except possibly
on error conditions; one designed to be used as a stage in a
`pipeline' (see plumbing). Compare sponge.
Finagle's Law
============= n. The generalized or `folk' version of
Murphy's Law, fully named "Finagle's Law of Dynamic
Negatives" and usually rendered "Anything that can go wrong,
will". One variant favored among hackers is "The perversity of
the Universe tends towards a maximum" (but see also [Hanlon's
Razor}). The label `Finagle's Law' was popularized by SF author
Larry Niven in several stories depicting a frontier culture of
asteroid miners; this `Belter' culture professed a religion
and/or running joke involving the worship of the dread god Finagle
and his mad prophet Murphy.
fine
==== [WPI] adj. Good, but not good enough to be cuspy. The word
`fine' is used elsewhere, of course, but without the implicit
comparison to the higher level implied by cuspy.
finger
====== [WAITS, via BSD UNIX] 1. n. A program that displays
information about a particular user or all users logged on the
system, or a remote system. Typically shows full name, last login
time, idle time, terminal line, and terminal location (where
applicable). May also display a plan file left by the user
(see also Hacking X for Y). 2. vt. To apply finger to a
username. 3. vt. By extension, to check a human's current state by
any means. "Foodp?" "T!" "OK, finger Lisa and see if she's
idle." 4. Any picture (composed of ASCII characters) depicting
`the finger'. Originally a humorous component of one's plan file
to deter the curious fingerer (sense 2), it has entered the arsenal
of some flamers.
finger-pointing syndrome
======================== n. All-too-frequent result of bugs, esp.
in new or experimental configurations. The hardware vendor points
a finger at the software. The software vendor points a finger
at the hardware. All the poor users get is the finger.
finn
==== [IRC] v. To pull rank on somebody based on the amount of
time one has spent on IRC. The term derives from the fact
that IRC was originally written in Finland in 1987.

firebottle
========== n. A large, primitive, power-hungry active electrical
device, similar in function to a FET but constructed out of glass,
metal, and vacuum. Characterized by high cost, low density, low
reliability, high-temperature operation, and high power
dissipation. Sometimes mistakenly called a `tube' in the U.S.
or a `valve' in England; another hackish term is glassfet.
firefighting
============ n. 1. What sysadmins have to do to correct sudden
operational problems. An opposite of hacking. "Been hacking your
new newsreader?" "No, a power glitch hosed the network and I spent
the whole afternoon fighting fires." 2. The act of throwing lots
of manpower and late nights at a project, esp. to get it out
before deadline. See also gang bang, [Mongolian Hordes
technique}; however, the term `firefighting' connotes that the
effort is going into chasing bugs rather than adding features.
firehose syndrome
================= n. In mainstream folklore it is observed that
trying to drink from a firehose can be a good way to rip your lips
off. On computer networks, the absence or failure of flow control
mechanisms can lead to situations in which the sending system
sprays a massive flood of packets at an unfortunate receiving
system, more than it can handle. Compare overrun, [buffer
overflow}.
firewall code
============= n. 1. The code you put in a system (say, a
telephone switch) to make sure that the users can't do any
damage. Since users always want to be able to do everything but
never want to suffer for any mistakes, the construction of a
firewall is a question not only of defensive coding but also of
interface presentation, so that users don't even get curious about
those corners of a system where they can burn themselves.
2. Any sanity check inserted to catch a can't happen error.
Wise programmers often change code to fix a bug twice: once to fix
the bug, and once to insert a firewall which would have arrested
the bug before it did quite as much damage.
firewall machine
================ n. A dedicated gateway machine with special
security precautions on it, used to service outside network
connections and dial-in lines. The idea is to protect a cluster of
more loosely administered machines hidden behind it from
crackers. The typical firewall is an inexpensive micro-based
UNIX box kept clean of critical data, with a bunch of modems and
public network ports on it but just one carefully watched
connection back to the rest of the cluster. The special
precautions may include threat monitoring, callback, and even a
complete iron box keyable to particular incoming IDs or
activity patterns. Syn. flytrap, Venus flytrap.
fireworks mode
============== n. The mode a machine is sometimes said to be in when
it is performing a crash and burn operation.
firmy
===== /fer'mee/ Syn. stiffy (a 3.5-inch floppy disk).
fish
==== [Adelaide University, Australia] n. 1. Another [metasyntactic
variable}. See foo. Derived originally from the Monty Python
skit in the middle of "The Meaning of Life" entitled
"Find the Fish". 2. A pun for `microfiche'. A microfiche
file cabinet may be referred to as a `fish tank'.
FISH queue
========== [acronym, by analogy with FIFO (First In, First Out)]
n. `First In, Still Here'. A joking way of pointing out that
processing of a particular sequence of events or requests has
stopped dead. Also `FISH mode' and `FISHnet'; the latter
may be applied to any network that is running really slowly or
exhibiting extreme flakiness.
FITNR
===== // [Thinking Machines, Inc.] Fixed In the Next Release.
A written-only notation attached to bug reports. Often wishful
thinking.
fix
=== n.,v. What one does when a problem has been reported too many
times to be ignored.
FIXME
===== imp. A standard tag often put in C comments near a piece of
code that needs work. The point of doing so is that a `grep'
or a similar pattern-matching tool can find all such places quickly.

FIXME: note this is common in GNU code.

Compare XXX.

flag
==== n. A variable or quantity that can take on one of two
values; a bit, particularly one that is used to indicate one of two
outcomes or is used to control which of two things is to be done.
"This flag controls whether to clear the screen before printing
the message." "The program status word contains several flag
bits." Used of humans analogously to bit. See also
hidden flag, mode bit.
flag day
======== n. A software change that is neither forward- nor
backward-compatible, and which is costly to make and costly to
reverse. "Can we install that without causing a flag day for all
users?" This term has nothing to do with the use of the word
flag to mean a variable that has two values. It came into use
when a massive change was made to the "Multics" timesharing
system to convert from the old ASCII code to the new one; this was
scheduled for Flag Day (a U.S. holiday), June 14, 1966. See also
backward combatability.
flaky
===== adj. (var sp. `flakey') Subject to frequent lossage.
This use is of course related to the common slang use of the word
to describe a person as eccentric, crazy, or just unreliable. A
system that is flaky is working, sort of --- enough that you are
tempted to try to use it --- but fails frequently enough that the
odds in favor of finishing what you start are low. Commonwealth
hackish prefers dodgy or wonky.
flamage
======= /flay'm*j/ n. Flaming verbiage, esp. high-noise,
low-signal postings to USENET or other electronic fora.
Often in the phrase `the usual flamage'. `Flaming' is the act
itself; `flamage' the content; a `flame' is a single flaming
message. See flame.
flame
===== 1. vi. To post an email message intended to insult and
provoke. 2. vi. To speak incessantly and/or rabidly on some
relatively uninteresting subject or with a patently ridiculous
attitude. 3. vt. Either of senses 1 or 2, directed with
hostility at a particular person or people. 4. n. An instance of
flaming. When a discussion degenerates into useless controversy,
one might tell the participants "Now you're just flaming" or
"Stop all that flamage!" to try to get them to cool down (so to
speak).

USENETter Marc Ramsey, who was at WPI from 1972 to 1976, adds: "I
am 99% certain that the use of `flame' originated at WPI. Those
who made a nuisance of themselves insisting that they needed to use
a TTY for `real work' came to be known as `flaming asshole lusers'.
Other particularly annoying people became `flaming asshole ravers',
which shortened to `flaming ravers', and ultimately `flamers'. I
remember someone picking up on the Human Torch pun, but I don't
think `flame on/off' was ever much used at WPI." See also
asbestos.

The term may have been independently invented at several different
places; it is also reported that `flaming' was in use to mean
something like `interminably drawn-out semi-serious discussions'
(late-night bull sessions) at Carleton College during 1968--1971.

It is possible that the hackish sense of `flame' is much older than
that. The poet Chaucer was also what passed for a wizard hacker in
his time; he wrote a treatise on the astrolabe, the most advanced
computing device of the day. In Chaucer's "Troilus and
Cressida", Cressida laments her inability to grasp the proof of a
particular mathematical theorem; her uncle Pandarus then observes
that it's called "the fleminge of wrecches." This phrase seems
to have been intended in context as "that which puts the wretches
to flight" but was probably just as ambiguous in Middle English as
"the flaming of wretches" would be today. One suspects that
Chaucer would feel right at home on USENET.

flame bait
========== n. A posting intended to trigger a flame war, or one
that invites flames in reply.
flame on
======== vi.,interj. 1. To begin to flame. The punning
reference to Marvel Comics's Human Torch is no longer widely
recognized. 2. To continue to flame. See rave, burble.
flame war
========= n. (var. `flamewar') An acrimonious dispute,
especially when conducted on a public electronic forum such as
USENET.
flamer
====== n. One who habitually flames. Said esp. of obnoxious
USENET personalities.
flap
==== vt. 1. To unload a DECtape (so it goes flap, flap,
flap...). Old-time hackers at MIT tell of the days when the
disk was device 0 and microtapes were 1, 2,... and
attempting to flap device 0 would instead start a motor banging
inside a cabinet near the disk. 2. By extension, to unload any
magnetic tape. See also macrotape. Modern cartridge tapes no
longer actually flap, but the usage has remained. (The term could
well be re-applied to DEC's TK50 cartridge tape drive, a
spectacularly misengineered contraption which makes a loud flapping
sound, almost like an old reel-type lawnmower, in one of its many
tape-eating failure modes.)
flarp
===== /flarp/ [Rutgers University] n. Yet another [metasyntactic
variable} (see foo). Among those who use it, it is associated
with a legend that any program not containing the word `flarp'
somewhere will not work. The legend is discreetly silent on the
reliability of programs which *do* contain the magic word.
flat
==== adj. 1. Lacking any complex internal structure. "That
bitty box has only a flat filesystem, not a hierarchical
one." The verb form is flatten. 2. Said of a memory
architecture (like that of the VAX or 680x0) that is one big linear
address space (typically with each possible value of a processor
register corresponding to a unique core address), as opposed to a
`segmented' architecture (like that of the 80x86) in which
addresses are composed from a base-register/offset pair (segmented
designs are generally considered cretinous).

Note that sense 1 (at least with respect to filesystems) is usually
used pejoratively, while sense 2 is a Good Thing.
flat-ASCII
========== adj. Said of a text file that contains only 7-bit
ASCII characters and uses only ASCII-standard control characters
(that is, has no embedded codes specific to a particular text
formatter markup language, or output device, and no
meta-characters). Syn. plain-ASCII. Compare
flat-file.
flat-file
========= adj. A flattened representation of some database or
tree or network structure as a single file from which the
structure could implicitly be rebuilt, esp. one in flat-ASCII
form. See also sharchive.
flatten
======= vt. To remove structural information, esp. to filter
something with an implicit tree structure into a simple sequence of
leaves; also tends to imply mapping to flat-ASCII. "This code
flattens an expression with parentheses into an equivalent
canonical form."
flavor
====== n. 1. Variety, type, kind. "DDT commands come in two
flavors." "These lights come in two flavors, big red ones and
small green ones." See vanilla. 2. The attribute that causes
something to be flavorful. Usually used in the phrase "yields
additional flavor". "This convention yields additional flavor by
allowing one to print text either right-side-up or upside-down."
See vanilla. This usage was certainly reinforced by the
terminology of quantum chromodynamics, in which quarks (the
constituents of, e.g., protons) come in six flavors (up, down,
strange, charm, top, bottom) and three colors (red, blue, green)
--- however, hackish use of `flavor' at MIT predated QCD. 3. The
term for `class' (in the object-oriented sense) in the LISP Machine
Flavors system. Though the Flavors design has been superseded
(notably by the Common LISP CLOS facility), the term `flavor' is
still used as a general synonym for `class' by some LISP hackers.
flavorful
========= adj. Full of flavor (sense 2); esthetically pleasing. See
random and losing for antonyms. See also the entries for
taste and elegant.
flippy
====== /flip'ee/ n. A single-sided floppy disk altered for
double-sided use by addition of a second write-notch, so called
because it must be flipped over for the second side to be
accessible. No longer common.
flood
===== [IRC] v. To dump large amounts of text onto an IRC
channel. This is especially rude when the text is uninteresting
and the other users are trying to carry on a serious conversation.

flowchart
========= : [techspeak] n. An archaic form of visual control-flow
specification employing arrows and `speech balloons' of various
shapes. Hackers never use flowcharts, consider them extremely
silly, and associate them with COBOL programmers, [card
walloper}s, and other lower forms of life. This attitude follows
from the observations that flowcharts (at least from a hacker's
point of view) are no easier to read than code, are less precise,
and tend to fall out of sync with the code (so that they either
obfuscate it rather than explaining it, or require extra
maintenance effort that doesn't improve the code). See also
pdl, sense 3.
flower key
========== [Mac users] n. See feature key.
flush
===== v. 1. To delete something, usually superfluous, or to abort
an operation. "All that nonsense has been flushed." 2. [UNIX/C]
To force buffered I/O to disk, as with an `fflush(3)' call.
This is *not* an abort or deletion as in sense 1, but a
demand for early completion! 3. To leave at the end of a day's
work (as opposed to leaving for a meal). "I'm going to flush
now." "Time to flush." 4. To exclude someone from an activity,
or to ignore a person.

`Flush' was standard ITS terminology for aborting an output
operation; one spoke of the text that would have been printed, but
was not, as having been flushed. It is speculated that this term
arose from a vivid image of flushing unwanted characters by hosing
down the internal output buffer, washing the characters away before
they could be printed. The UNIX/C usage, on the other hand, was
propagated by the `fflush(3)' call in C's standard I/O library
(though it is reported to have been in use among BLISS programmers
at DEC and on Honeywell and IBM machines as far back as 1965).
UNIX/C hackers find the ITS usage confusing, and vice versa.

flypage
======= /fli:'payj/ n. (alt. `fly page') A banner, sense
1.
Flyspeck 3
========== n. Standard name for any font that is so tiny as to be
unreadable (by analogy with names like `Helvetica 10' for
10-point Helvetica). Legal boilerplate is usually printed in
Flyspeck 3.
flytrap
======= n. See firewall machine.
FM
== /F-M/ n. *Not* `Frequency Modulation' but rather an
abbreviation for `Fucking Manual', the back-formation from
RTFM. Used to refer to the manual itself in the RTFM.
"Have you seen the Networking FM lately?"
fnord
===== [from the "Illuminatus Trilogy"] n. 1. A word used in
email and news postings to tag utterances as surrealist mind-play
or humor, esp. in connection with Discordianism and elaborate
conspiracy theories. "I heard that David Koresh is sharing an
apartment in Argentina with Hitler. (Fnord.)" "Where can I fnord
get the Principia Discordia from?" 2. A metasyntactic variable,
commonly used by hackers with ties to Discordianism or the
Church of the SubGenius.
FOAF
==== // [USENET] n. Acronym for `Friend Of A Friend'. The
source of an unverified, possibly untrue story. This term was not
originated by hackers (it is used in Jan Brunvand's books on urban
folklore), but is much better recognized on USENET and elsewhere
than in mainstream English.
FOD
=== /fod/ v. [Abbreviation for `Finger of Death', originally a
spell-name from fantasy gaming] To terminate with extreme prejudice
and with no regard for other people. From MUDs where the
wizard command `FOD ' results in the immediate and total
death of , usually as punishment for obnoxious behavior.
This usage migrated to other circumstances, such as "I'm going to fod
the process that is burning all the cycles." Compare gun.

In aviation, FOD means Foreign Object Damage, e.g., what happens
when a jet engine sucks up a rock on the runway or a bird in
flight. Finger of Death is a distressingly apt description of
what this generally does to the engine.

fold case
========= v. See smash case. This term tends to be used
more by people who don't mind that their tools smash case. It also
connotes that case is ignored but case distinctions in data
processed by the tool in question aren't destroyed.
followup
======== n. On USENET, a posting generated in response to
another posting (as opposed to a reply, which goes by email
rather than being broadcast). Followups include the ID of the
parent message in their headers; smart news-readers can use
this information to present USENET news in `conversation' sequence
rather than order-of-arrival. See thread.
fontology
========= [XEROX PARC] n. The body of knowledge dealing with the
construction and use of new fonts (e.g., for window systems and
typesetting software). It has been said that fontology
recapitulates file-ogeny.

[Unfortunately, this reference to the embryological dictum that
"Ontogeny recapitulates phylogeny" is not merely a joke. On the
Macintosh, for example, System 7 has to go through contortions to
compensate for an earlier design error that created a whole
different set of abstractions for fonts parallel to `files' and
`folders' --- ESR]

foo
=== /foo/ 1. interj. Term of disgust. 2. Used very generally
as a sample name for absolutely anything, esp. programs and files
(esp. scratch files). 3. First on the standard list of
metasyntactic variables used in syntax examples. See also
bar, baz, qux, quux, corge, grault,
garply, waldo, fred, plugh, xyzzy,
thud.

The etymology of hackish `foo' is obscure. When used in
connection with `bar' it is generally traced to the WWII-era Army
slang acronym FUBAR (`Fucked Up Beyond All Repair'), later
bowdlerized to foobar. (See also FUBAR).

However, the use of the word `foo' itself has more complicated
antecedents, including a long history in comic strips and cartoons.
The old "Smokey Stover" comic strips by Bill Holman often
included the word `FOO', in particular on license plates of cars;
allegedly, `FOO' and `BAR' also occurred in Walt Kelly's
"Pogo" strips. In the 1938 cartoon "The Daffy Doc", a very
early version of Daffy Duck holds up a sign saying "SILENCE IS
FOO!"; oddly, this seems to refer to some approving or positive
affirmative use of foo. It has been suggested that this might be
related to the Chinese word `fu' (sometimes transliterated
`foo'), which can mean "happiness" when spoken with the proper
tone (the lion-dog guardians flanking the steps of many Chinese
restaurants are properly called "fu dogs").

Earlier versions of this entry suggested the possibility that
hacker usage actually sprang from "FOO, Lampoons and Parody",
the title of a comic book first issued in September 1958, a joint
project of Charles and Robert Crumb. Though Robert Crumb (then in
his mid-teens) later became one of the most important and
influential artists in underground comics, this venture was hardly
a success; indeed, the brothers later burned most of the existing
copies in disgust. The title FOO was featured in large letters on
the front cover. However, very few copies of this comic actually
circulated, and students of Crumb's `oeuvre' have established
that this title was a reference to the earlier Smokey Stover
comics.

An old-time member reports that in the 1959 "Dictionary of the
TMRC Language", compiled at TMRC there was an entry that went
something like this:

FOO: The first syllable of the sacred chant phrase "FOO MANE PADME
HUM." Our first obligation is to keep the foo counters turning.

For more about the legendary foo counters, see TMRC. Almost
the entire staff of what became the MIT AI LAB was involved with
TMRC, and probably picked the word up there.

Very probably, hackish `foo' had no single origin and derives
through all these channels from Yiddish `feh' and/or English
`fooey'.

foobar
====== n. Another common metasyntactic variable; see foo.
Hackers do *not* generally use this to mean FUBAR in
either the slang or jargon sense.
fool
==== n. As used by hackers, specifically describes a person who
habitually reasons from obviously or demonstrably incorrect
premises and cannot be persuaded by evidence to do otherwise; it is
not generally used in its other senses, i.e., to describe a person
with a native incapacity to reason correctly, or a clown. Indeed,
in hackish experience many fools are capable of reasoning all too
effectively in executing their errors. See also cretin,
loser, fool file, the.
fool file, the
============== [USENET] n. A notional repository of all the most
dramatically and abysmally stupid utterances ever. An entire
subgenre of sig blocks consists of the header "From the fool
file:" followed by some quote the poster wishes to represent as an
immortal gem of dimwittery; for this usage to be really effective,
the quote has to be so obviously wrong as to be laughable. More
than one USENETter has achieved an unwanted notoriety by being
quoted in this way.
Foonly
====== n. 1. The PDP-10 successor that was to have been
built by the Super Foonly project at the Stanford Artificial
Intelligence Laboratory along with a new operating system. The
intention was to leapfrog from the old DEC timesharing system SAIL
was then running to a new generation, bypassing TENEX which at that
time was the ARPANET standard. ARPA funding for both the Super
Foonly and the new operating system was cut in 1974. Most of the
design team went to DEC and contributed greatly to the design of
the PDP-10 model KL10. 2. The name of the company formed by Dave
Poole, one of the principal Super Foonly designers, and one of
hackerdom's more colorful personalities. Many people remember the
parrot which sat on Poole's shoulder and was a regular companion.
3. Any of the machines built by Poole's company. The first was the
F-1 (a.k.a. Super Foonly), which was the computational engine used
to create the graphics in the movie "TRON". The F-1 was the
fastest PDP-10 ever built, but only one was ever made. The effort
drained Foonly of its financial resources, and the company turned
towards building smaller, slower, and much less expensive
machines. Unfortunately, these ran not the popular TOPS-20
but a TENEX variant called Foonex; this seriously limited their
market. Also, the machines shipped were actually wire-wrapped
engineering prototypes requiring individual attention from more
than usually competent site personnel, and thus had significant
reliability problems. Poole's legendary temper and unwillingness
to suffer fools gladly did not help matters. By the time of the
Jupiter project cancellation in 1983, Foonly's proposal to build
another F-1 was eclipsed by the Mars, and the company never
quite recovered. See the Mars entry for the continuation and
moral of this story.
footprint
========= n. 1. The floor or desk area taken up by a piece of
hardware. 2. [IBM] The audit trail (if any) left by a crashed
program (often in plural, `footprints'). See also
toeprint.
for free
======== adj. Said of a capability of a programming language or
hardware equipment that is available by its design without needing
cleverness to implement: "In APL, we get the matrix operations for
free." "And owing to the way revisions are stored in this
system, you get revision trees for free." The term usually refers
to a serendipitous feature of doing things a certain way (compare
big win), but it may refer to an intentional but secondary
feature.
for the rest of us
================== [from the Mac slogan "The computer for the
rest of us"] adj. 1. Used to describe a spiffy product whose
affordability shames other comparable products, or (more often)
used sarcastically to describe spiffy but very overpriced
products. 2. Describes a program with a limited interface,
deliberately limited capabilities, non-orthogonality, inability to
compose primitives, or any other limitation designed to not
`confuse' a naive user. This places an upper bound on how far
that user can go before the program begins to get in the way of the
task instead of helping accomplish it. Used in reference to
Macintosh software which doesn't provide obvious capabilities
because it is thought that the poor lusers might not be able to
handle them. Becomes `the rest of *them*' when used in
third-party reference; thus, "Yes, it is an attractive program,
but it's designed for The Rest Of Them" means a program that
superficially looks neat but has no depth beyond the surface flash.
See also WIMP environment, Macintrash,
point-and-drool interface, user-friendly.
for values of
============= [MIT] A common rhetorical maneuver at MIT is to use
any of the canonical random numbers as placeholders for
variables. "The max function takes 42 arguments, for arbitrary
values of 42." "There are 69 ways to leave your lover, for
69 = 50." This is especially likely when the speaker has uttered
a random number and realizes that it was not recognized as such,
but even `non-random' numbers are occasionally used in this
fashion. A related joke is that pi equals 3 --- for
small values of pi and large values of 3.

Historical note: this usage probably derives from the programming
language MAD (Michigan Algorithm Decoder), an Algol-like language
that was the most common choice among mainstream (non-hacker) users
at MIT in the mid-60s. It had a control structure FOR VALUES OF X
= 3, 7, 99 DO ... that would repeat the indicated instructions for
each value in the list (unlike the usual FOR that only works for
arithmetic sequences of values). MAD is long extinct, but similar
for-constructs still flourish (e.g., in UNIX's shell languages).

fora
==== pl.n. Plural of forum.
foreground
========== [UNIX] vt. To bring a task to the top of one's
stack for immediate processing, and hackers often use it in
this sense for non-computer tasks. "If your presentation is due
next week, I guess I'd better foreground writing up the design
document."

Technically, on a time-sharing system, a task executing in
foreground is one able to accept input from and return output to
the user; oppose background. Nowadays this term is primarily
associated with "UNIX", but it appears first to have been used
in this sense on OS/360. Normally, there is only one foreground
task per terminal (or terminal window); having multiple processes
simultaneously reading the keyboard is a good way to lose.

fork bomb
========= [UNIX] n. A particular species of wabbit that can
be written in one line of C (`main() [for(;;)fork();]') or shell
(`$0 & $0 &') on any UNIX system, or occasionally created by an
egregious coding bug. A fork bomb process `explodes' by
recursively spawning copies of itself (using the UNIX system call
`fork(2)'). Eventually it eats all the process table entries
and effectively wedges the system. Fortunately, fork bombs are
relatively easy to spot and kill, so creating one deliberately
seldom accomplishes more than to bring the just wrath of the gods
down upon the perpetrator. See also logic bomb.
forked
====== [UNIX; prob. influenced by a mainstream expletive] adj.
Terminally slow, or dead. Originated when one system was slowed to
a snail's pace by an inadvertent fork bomb.
Fortrash
======== /for'trash/ n. Hackerism for the FORTRAN (FORmula
TRANslator) language, referring to its primitive design, gross and
irregular syntax, limited control constructs, and slippery,
exception-filled semantics.
fortune cookie
============== [WAITS, via UNIX] n. A random quote, item of
trivia, joke, or maxim printed to the user's tty at login time or
(less commonly) at logout time. Items from this lexicon have often
been used as fortune cookies. See cookie file.
forum
===== n. [USENET, GEnie, CI$; pl. `fora' or `forums'] Any
discussion group accessible through a dial-in BBS, a
mailing list, or a newsgroup (see network, the). A
forum functions much like a bulletin board; users submit
postings for all to read and discussion ensues. Contrast
real-time chat via talk mode or point-to-point personal
email.
fossil
====== n. 1. In software, a misfeature that becomes
understandable only in historical context, as a remnant of times
past retained so as not to break compatibility. Example: the
retention of octal as default base for string escapes in C, in
spite of the better match of hexadecimal to ASCII and modern
byte-addressable architectures. See dusty deck. 2. More
restrictively, a feature with past but no present utility.
Example: the force-all-caps (LCASE) bits in the V7 and BSD
UNIX tty driver, designed for use with monocase terminals. (In a
perversion of the usual backward-compatibility goal, this
functionality has actually been expanded and renamed in some later
USG UNIX releases as the IUCLC and OLCUC bits.) 3. The FOSSIL
(Fido/Opus/Seadog Standard Interface Level) driver specification
for serial-port access to replace the brain-dead routines in
the IBM PC ROMs. Fossils are used by most MS-DOS BBS software
in preference to the `supported' ROM routines, which do not support
interrupt-driven operation or setting speeds above 9600; the use of
a semistandard FOSSIL library is preferable to the bare metal
serial port programming otherwise required. Since the FOSSIL
specification allows additional functionality to be hooked in,
drivers that use the hook but do not provide serial-port
access themselves are named with a modifier, as in `video
fossil'.
four-color glossies
=================== 1. Literature created by marketroids
that allegedly contains technical specs but which is in fact as
superficial as possible without being totally content-free.
"Forget the four-color glossies, give me the tech ref manuals."
Often applied as an indication of superficiality even when the
material is printed on ordinary paper in black and white.
Four-color-glossy manuals are *never* useful for finding a
problem. 2. [rare] Applied by extension to manual pages that don't
contain enough information to diagnose why the program doesn't
produce the expected or desired output.
fragile
======= adj. Syn brittle.
fred
==== n. 1. The personal name most frequently used as a
metasyntactic variable (see foo). Allegedly popular
because it's easy for a non-touch-typist to type on a standard
QWERTY keyboard. Unlike J. Random Hacker or `J. Random
Loser', this name has no positive or negative loading (but see
Mbogo, Dr. Fred). See also barney. 2. An acronym for
`Flipping Ridiculous Electronic Device'; other F-verbs may be
substituted for `flipping'.
frednet
======= /fred'net/ n. Used to refer to some random and
uncommon protocol encountered on a network. "We're implementing
bridging in our router to solve the frednet problem."
freeware
======== n. Free software, often written by enthusiasts and
distributed by users' groups, or via electronic mail, local
bulletin boards, USENET, or other electronic media. At one
time, `freeware' was a trademark of Andrew Fluegelman, the author
of the well-known MS-DOS comm program PC-TALK III. It wasn't
enforced after his mysterious disappearance and presumed death
in 1984. See shareware.
freeze
====== v. To lock an evolving software distribution or document
against changes so it can be released with some hope of stability.
Carries the strong implication that the item in question will
`unfreeze' at some future date. "OK, fix that bug and we'll
freeze for release."

There are more specific constructions on this term. A `feature
freeze', for example, locks out modifications intended to introduce
new features but still allows bugfixes and completion of existing
features; a `code freeze' connotes no more changes at all. At
Sun Microsystems and elsewhere, one may also hear references to
`code slush' --- that is, an almost-but-not-quite frozen state.

fried
===== adj. 1. Non-working due to hardware failure; burnt out.
Especially used of hardware brought down by a `power glitch' (see
glitch), drop-outs, a short, or some other electrical
event. (Sometimes this literally happens to electronic circuits!
In particular, resistors can burn out and transformers can melt
down, emitting noxious smoke --- see friode, SED and
LER. However, this term is also used metaphorically.)
Compare frotzed. 2. Of people, exhausted. Said particularly
of those who continue to work in such a state. Often used as an
explanation or excuse. "Yeah, I know that fix destroyed the file
system, but I was fried when I put it in." Esp. common in
conjunction with `brain': "My brain is fried today, I'm very
short on sleep."
frink
===== /frink/ v. The unknown ur-verb, fill in your own meaning.
Found esp. on the USENET newsgroup alt.fan.lemurs, where it is
said that the lemurs know what `frink' means, but they aren't
telling. Compare gorets.
friode
====== /fri:'ohd/ [TMRC] n. A reversible (that is, fused or
blown) diode. Compare fried; see also SED, LER.
fritterware
=========== n. An excess of capability that serves no productive
end. The canonical example is font-diddling software on the Mac
(see macdink); the term describes anything that eats huge
amounts of time for quite marginal gains in function but seduces
people into using it anyway. See also window shopping.
frob
==== /frob/ 1. n. [MIT] The TMRC definition was "FROB = a
protruding arm or trunnion"; by metaphoric extension, a `frob'
is any random small thing; an object that you can comfortably hold
in one hand; something you can frob (sense 2). See frobnitz.
2. vt. Abbreviated form of frobnicate. 3. [from the MUD
world] A command on some MUDs that changes a player's experience
level (this can be used to make wizards); also, to request
wizard privileges on the `professional courtesy' grounds
that one is a wizard elsewhere. The command is actually
`frobnicate' but is universally abbreviated to the shorter
form.
frobnicate
========== /frob'ni-kayt/ vt. [Poss. derived from
frobnitz, and usually abbreviated to frob, but
`frobnicate' is recognized as the official full form.] To
manipulate or adjust, to tweak. One frequently frobs bits or other
2-state devices. Thus: "Please frob the light switch" (that is,
flip it), but also "Stop frobbing that clasp; you'll break it".
One also sees the construction `to frob a frob'. See tweak
and twiddle.

Usage: frob, twiddle, and tweak sometimes connote points along a
continuum. `Frob' connotes aimless manipulation; `twiddle'
connotes gross manipulation, often a coarse search for a proper
setting; `tweak' connotes fine-tuning. If someone is turning a
knob on an oscilloscope, then if he's carefully adjusting it, he is
probably tweaking it; if he is just turning it but looking at the
screen, he is probably twiddling it; but if he's just doing it
because turning a knob is fun, he's frobbing it. The variant
`frobnosticate' has been recently reported.

frobnitz
======== /frob'nits/, plural `frobnitzem' /frob'nit-zm/ or
`frobni' /frob'ni:/ [TMRC] n. An unspecified physical object, a
widget. Also refers to electronic black boxes. This rare form is
usually abbreviated to `frotz', or more commonly to frob.
Also used are `frobnule' (/frob'n[y]ool/) and `frobule'
(/frob'yool/). Starting perhaps in 1979, `frobozz'
/fr*-boz'/ (plural: `frobbotzim' /fr*-bot'zm/) has also
become very popular, largely through its exposure as a name via
Zork. These variants can also be applied to nonphysical
objects, such as data structures.

Pete Samson, compiler of the original TMRC lexicon, adds,
"Under the TMRC [railroad] layout were many storage boxes, managed
(in 1958) by David R. Sawyer. Several had fanciful designations
written on them, such as `Frobnitz Coil Oil'. Perhaps DRS intended
Frobnitz to be a proper name, but the name was quickly taken for
the thing". This was almost certainly the origin of the
term.

frog
==== alt. `phrog' 1. interj. Term of disgust (we seem to have
a lot of them). 2. Used as a name for just about anything. See
foo. 3. n. Of things, a crock. 4. n. Of people, somewhere in
between a turkey and a toad. 5. `froggy': adj. Similar to
bagbiting, but milder. "This froggy program is taking
forever to run!"
frogging
======== [University of Waterloo] v. 1. Partial corruption of a
text file or input stream by some bug or consistent glitch, as
opposed to random events like line noise or media failures. Might
occur, for example, if one bit of each incoming character on a tty
were stuck, so that some characters were correct and others were
not. See terminak for a historical example. 2. By extension,
accidental display of text in a mode where the output device emits
special symbols or mnemonics rather than conventional ASCII. This
often happens, for example, when using a terminal or comm program
on a device like an IBM PC with a special `high-half' character set
and with the bit-parity assumption wrong. A hacker sufficiently
familiar with ASCII bit patterns might be able to read the display
anyway.
front end
========= n. 1. An intermediary computer that does set-up and
filtering for another (usually more powerful but less friendly)
machine (a `back end'). 2. What you're talking to when you
have a conversation with someone who is making replies without
paying attention. "Look at the dancing elephants!" "Uh-huh."
"Do you know what I just said?" "Sorry, you were talking to the
front end." See also fepped out. 3. Software that provides
an interface to another program `behind' it, which may not be as
user-friendly. Probably from analogy with hardware front-ends (see
sense 1) that interfaced with mainframes.
frotz
===== /frots/ 1. n. See frobnitz. 2. `mumble frotz': An
interjection of mildest disgust.
frotzed
======= /frotst/ adj. down because of hardware problems. Compare
fried. A machine that is merely frotzed may be fixable
without replacing parts, but a fried machine is more seriously
damaged.
frowney
======= n. (alt. `frowney face') See emoticon.
fry
=== 1. vi. To fail. Said especially of smoke-producing hardware
failures. More generally, to become non-working. Usage: never
said of software, only of hardware and humans. See fried,
magic smoke. 2. vt. To cause to fail; to roach, toast,
or hose a piece of hardware. Never used of software or humans,
but compare fried.
FTP
=== /F-T-P/, *not* /fit'ip/ 1. [techspeak] n. The File
Transfer Protocol for transmitting files between systems on the
Internet. 2. vt. To beam a file using the File Transfer
Protocol. 3. Sometimes used as a generic even for file transfers
not using FTP. "Lemme get a copy of "Wuthering
Heights" ftp'd from uunet."
FUBAR
===== n. The Failed UniBus Address Register in a VAX. A good
example of how jargon can occasionally be snuck past the suits;
see foobar, and foo for a fuller etymology.
fuck me harder
============== excl. Sometimes uttered in response to egregious
misbehavior, esp. in software, and esp. of misbehaviors which
seem unfairly persistent (as though designed in by the imp of the
perverse). Often theatrically elaborated: "Aiighhh! Fuck me with
a piledriver and 16 feet of curare-tipped wrought-iron fence
*and no lubricants*!" The phrase is sometimes heard
abbreviated `FMH' in polite company.

[This entry is an extreme example of the hackish habit of coining
elaborate and evocative terms for lossage. Here we see a quite
self-conscious parody of mainstream expletives that has become a
running gag in part of the hacker culture; it illustrates the
hackish tendency to turn any situation, even one of extreme
frustration, into an intellectual game (the point being, in this
case, to creatively produce a long-winded description of the
most anatomically absurd mental image possible --- the short forms
implicitly allude to all the ridiculous long forms ever spoken).
Scatological language is actually relatively uncommon among
hackers, and there was some controversy over whether this entry
ought to be included at all. As it reflects a live usage
recognizably peculiar to the hacker culture, we feel it is
in the hackish spirit of truthfulness and opposition to all
forms of censorship to record it here. --- ESR & GLS]

FUD
=== /fuhd/ n. Defined by Gene Amdahl after he left IBM to found
his own company: "FUD is the fear, uncertainty, and doubt that IBM
sales people instill in the minds of potential customers who might
be considering [Amdahl] products." The idea, of course, was to
persuade them to go with safe IBM gear rather than with
competitors' equipment. This implicit coercion was traditionally
accomplished by promising that Good Things would happen to people
who stuck with IBM, but Dark Shadows loomed over the future of
competitors' equipment or software. See IBM.
FUD wars
======== /fuhd worz/ n. [from FUD] Political posturing engaged in
by hardware and software vendors ostensibly committed to
standardization but actually willing to fragment the market to
protect their own shares. The UNIX International vs. OSF conflict
is but one outstanding example.
fudge
===== 1. vt. To perform in an incomplete but marginally acceptable
way, particularly with respect to the writing of a program. "I
didn't feel like going through that pain and suffering, so I fudged
it --- I'll fix it later." 2. n. The resulting code.
fudge factor
============ n. A value or parameter that is varied in an ad hoc way
to produce the desired result. The terms `tolerance' and
slop are also used, though these usually indicate a one-sided
leeway, such as a buffer that is made larger than necessary
because one isn't sure exactly how large it needs to be, and it is
better to waste a little space than to lose completely for not
having enough. A fudge factor, on the other hand, can often be
tweaked in more than one direction. A good example is the `fuzz'
typically allowed in floating-point calculations: two numbers being
compared for equality must be allowed to differ by a small amount;
if that amount is too small, a computation may never terminate,
while if it is too large, results will be needlessly inaccurate.
Fudge factors are frequently adjusted incorrectly by programmers
who don't fully understand their import. See also [coefficient
of X}.
fuel up
======= vi. To eat or drink hurriedly in order to get back to
hacking. "Food-p?" "Yeah, let's fuel up." "Time for a
great-wall!" See also "oriental food".
fum
=== [XEROX PARC] n. At PARC, often the third of the standard
metasyntactic variables (after foo and bar). Competes
with baz, which is more common outside PARC.
funky
===== adj. Said of something that functions, but in a slightly
strange, klugey way. It does the job and would be difficult to
change, so its obvious non-optimality is left alone. Often used to
describe interfaces. The more bugs something has that nobody has
bothered to fix because workarounds are easier, the funkier it is.
TECO and UUCP are funky. The Intel i860's exception handling is
extraordinarily funky. Most standards acquire funkiness as they
age. "The new mailer is installed, but is still somewhat funky;
if it bounces your mail for no reason, try resubmitting it."
"This UART is pretty funky. The data ready line is active-high in
interrupt mode and active-low in DMA mode."
funny money
=========== n. 1. Notional `dollar' units of computing time
and/or storage handed to students at the beginning of a computer
course; also called `play money' or `purple money' (in implicit
opposition to real or `green' money). In New Zealand and Germany
the odd usage `paper money' has been recorded; in Germany, the
particularly amusing synonym `transfer ruble' commemmorates the
funny money used for trade between COMECON countries back when the
Soviet Bloc still existed. When your funny money ran out, your
account froze and you needed to go to a professor to get more.
Fortunately, the plunging cost of timesharing cycles has made this
less common. The amounts allocated were almost invariably too
small, even for the non-hackers who wanted to slide by with minimum
work. In extreme cases, the practice led to small-scale black
markets in bootlegged computer accounts. 2. By extension, phantom
money or quantity tickets of any kind used as a resource-allocation
hack within a system. Antonym: `real money'.
furrfu
====== // [USENET] excl. Written-only equivalent of
"Sheesh!"; it is, in fact, "sheesh" modified by rot13.
Evolved in mid-1992 as a response to notably silly postings
repeating urban myths on the USENET newsgroup
alt.folklore.urban, after some posters complained that
"Sheesh!" as a response to newbies was being overused. See
also FOAF.
fuzzball
======== [TCP/IP hackers] n. A DEC LSI-11 running a particular
suite of homebrewed software written by Dave Mills and assorted
co-conspirators, used in the early 1980s for Internet protocol
testbedding and experimentation. These were used as NSFnet
backbone sites in its early 56KB-line days; a few are still active
on the Internet as of early 1991, doing odd jobs such as network
time service.