Top Definition
An term used for unimportant variables in programming when the programmer is too lazy to think of an actual name. The origin of such word is described in detail in RFC 3092.
int foo;
foo = 2 + 2;
cout << foo;
by Dahhak July 20, 2004
short for "phooey"; term used when something goes unaccording to plan or when something unexpected happens.
"Foo! That wasn't supposed to happen!"
by kaili June 20, 2004
someone who is foolish
derived from the word fool
god damn you are one foo
by Daniel Morley February 12, 2004
A random object. Easily intertwined where the speaker is too lazy to insert the correct noun
"Just throw that foos anywhere"
"WTF is all this foos?"
"Throw me a porn mag and some foos"
"Don't make me kick u in the foos!"
"Where did I leave all my foos?"
"Goddamn foos!"
"Mmmm this is some tasty foos!"
by Mark D (Foos) August 31, 2003
When somthing is Dysfunctional, or not working properly. If something/someone is not "normal."

If something or someone is odd in behavior, action, or just existance
Out of the ordinary
1)Gosh, why is this computer not working...its being so FOO.

2)That clock is so Foo, its tilted 25 degrees off center.

3)Why are there 4 coffe cups full of water in that microwave? Foo much..
by audschrismalizdeepsnayo November 04, 2009
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