A term used when describing the need for either a very big fart or a very small pooh, but you're not sure.
Damn, I think I need a foo!
by Cassandra Nilsson October 12, 2007

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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

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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

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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

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slang for "i will post pictures of myself on myspace"
she resignedly uttered, "Foo."
by socialized anarchy November 03, 2005

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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

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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

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