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
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Wutch you talking about foo !?
by Pizzlej January 31, 2021
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short for "silly young man" in ebonics
damn foo!!! get the hell off mah bitch befo' i blow your punk ass off
by felo September 9, 2004
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derived from SNAFU which, in military lingo mean Situation Normal All Fucked Up
by John June 27, 2004
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Means 'fucking cool'. Also is commonly used as the short version of 'fooey' or 'fooya', meaning gross or disgusting.
Noah: Allie, you're so foo!
Allie: Thanks, Noah! You're foo too.
by threalalig July 13, 2006
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Short for fool, as per Mr. T.
"I pity the foo who..."
by slice32 April 18, 2005
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