a slang abbreviation for the word "fool". May have originated with black people but people of nearly all ethnic groups use it now.
1. Mr. T often says "I pity the fool". The last word in that phrase has often been mistrued as "foo".

2. In my sociology class in college our professor was giving a presentation about the presence of violence in human society. He stated that the family is the 3rd most "violent" institution in society (#1 and #2 being the military and police due to what said occupations may require). He mentioned domestic abuse and soon he drifted direction to the women, talking about date abuse. He said "in a relationship no one should be calling all the shots. If you don't want to do something he shouldn't try to force you to. If he ever beats you THEN THE RELATIONSHIP SHOULD BE OVER. If he does it once he'll do it again. He might say that he can change but he won't. People like that want someone to control and use. YOU DON'T HAVE TO TAKE IT FROM THE FOO. You deserve better. You need a real man, not some immature foo looking for a punching bag or someone to slap around..."

3. to a certain Bahamian celebrity: are you reading this? We saw that picture and what some foo did to you. Don't be a foo too!
by New World Man March 16, 2009
74 more definitions
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
A contracted version of the word 'fool'.

The word origionated with Mr.T. Due to the extended contact with cheap substitute gold, he can no longer tell the difference between anybody he meets. In order to save himself the humiliation of asking who he's talking to, he simply refers to anyone and every one as 'foo' or 'sucka'.
"You crazy foo!"
"Dial 1-800-COLLECT, foo!"
by CubanB March 31, 2003
One of the default variables in programmer's slang. See bar.
And I incremented foo, but then forgot to check the array boundary and all hell broke loose
by Anonymous October 15, 2002
foo A sample name for absolutely anything,
especially programs and files (especially scratch files).
First on the standard list of metasyntactic variables used
in syntax examples.
The terms foobar, foo, bar, and baz are sometimes used as placeholder names (also referred to as metasyntactic variables) in computer programming or computer-related documentation. They have been used to name entities such as variables, functions, and commands whose purpose is unimportant and serve only to demonstrate a concept. The words themselves have no meaning in this usage. Foobar is sometimes used alone; foo, bar, and baz are sometimes used in that order, when multiple entities are needed.
by fooman99 November 15, 2010
1. A word meaning "fool", in the case of Mr. T

2. A commonly used programming variable, used when someone doesn't want to spend the time thinking up a real name for it.

3. A metasyntactic variable commonly used by coders.

Foo is often used in conjunction with the words bar baz and qux
1. "I pity the foo!"

2. foo = 3;

3. "Damn! Dont we have any good food? All thats left is this foo!"
"The code is full of foo"
by "Niffshack" February 20, 2005
Kung fu means skill from effort.
Kung foo means skill from bad-ass programming powers.

$foo is used extensivly in php as a generic variable.
"This is my kung foo, and it is strong."

$foo += 10;
by Skara March 22, 2005
like foo except with proper use of the apostrophe for the omission of the letter l. A contraction of the word fool
Fast food will make you fat foo'!
by Aaron December 23, 2004

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