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I pity da f00 who doesn't dial collect
f00 by MonJoe May 15, 2003
Related Words
f00b f00! f00d f00k f00p f00ly f001 aka gothband1t f00d4g3 f00d d00d f00fer
In programming, F00 is what you call a variable with a vague name in which you store a color.
#F00 is the color code for bright red in simplified rgb hex. Foo is a variable name chosen by lazy programmers who can't come up with better variable names.
Plural: f00s
Verb: f00ing
Person 1: I just made this javascript code:

var meh = "#FFF";
var iCantThinkOfWhatToNameThis = "#BADA55";
var F00 = "#F00";
var bar = "#123456";
Person 2: Stop f00ing your code up with so many f00s.
f00 by Potatoes! June 13, 2014
Derived from computer music (tracker) code. The "f" represents speed and "00" means that the song (actually pattern) stops.
So basically there's also my redefinintion for the rock band Foo Fighters... I don't think they're "fighting the fools", but rather "fighting to keep the music playing" or something in that direction ;)
bahrg i dont have one,just let me post this shit
f00 by jallah February 11, 2005
f00 by lol October 8, 2003
Man, did you peep that f00 trying to gank my wallet?
f00 by Sloppy White February 14, 2003
1347 5p34k version of "Fool"
one who is foolish or has foolish tendancies.
f00! by Crackity Jones June 30, 2002