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4.
foo
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
 
64.
Foo
A term used in an instance when you need either a very big fart or a very small pooh but are unsure as to which.
Damn, I think I need a foo!
by Cassandra Nilsson August 09, 2007
 
65.
Foo
A term used in an instance when you need either a very big fart or a very small pooh but are unsure as to which.
Damn, I think I need a foo!
by Cassandra Nilsson August 02, 2007
 
66.
Foo
Nickname of a child named Matthew, too young to pronouce his name correctly.
Little Matthew could not pronounce his name. He always said "Ma-foo", so he became known as "Foo".
by Fizzie April 05, 2006
 
67.
foo
slang for "i will post pictures of myself on myspace"
she resignedly uttered, "Foo."
by socialized anarchy November 03, 2005
 
68.
foo
A cry of exasperation. Generally triggered by something traumatizing to your personal psyche. See foomatic.
Man: "I'm going to be late again."

Woman: "Foo."
by hampuff June 19, 2005
 
69.
Foo
Used in the 80's to identify a person. Now only homo people from the west coast use it. West coast people also known as HOMO THUGS
I b from the west foo i b whack foo
by PSXy April 09, 2005
 
70.
a) Multiple of foo. See foo, a Mr T-ism, contraction for fool.

b) Dave Grohl's over-rated foo fighters band.
Hannibal, wat dees foos talkin jibba jabba bout? Crazy foo Murdock in ma van!


"The foos smoke monkey dong"
by Kung-Fu Jesus May 05, 2004