act a motherfuckin foo 

act a fool implying the foolishness has already begun.

Don't make me act a motherfuckin foo

act a motherfuckin foo by Gumba Gumba May 24, 2004

Déjà Foo 

The peculiar feeling that you get when programming, leading you to believe that you've written the particular code or program that you are currently working on, before.

After refactoring his game engine for the fourth time, Vincent was struck with a distinct, uncomfortable sense of déjà foo.

Déjà Foo by Evil Vincent December 6, 2006

chinese foo 

chinese FOOD said by a chinese person

You oda chinese foo!?

chinese foo by yo May 4, 2004

foo bar 

A slang term meaning "fucked up beyond all recognition." The saying was used primarilly in programing and originated as fubar, but for political correctness it was changed to foo bar.

Foo and bar also often represent variables.

Dude that thing is foo bar!

foo bar by ted_yc July 30, 2008

foo 

what the foo fighters fight

the foo fighters fight foo

foo by futuramafan March 7, 2008

Foo Fighter 

Foo is a doric (NE Scotland) word for drunk
A Foo Fighter is someone who can't handle their drink and ends up in a fight when they are drunk

After a few pint that boy turns into a Foo Fighter

Foo Fighter by BigMc1965 June 11, 2011

Pilly Foo 

Pilly foo is an intense case of bedhead that one acquires in one of several ways. The most popular method of attaining pilly foo is to sleep for an extended period of time with already-messy hair at the time of going to bed.

Other methods include naps, getting attacked by a blowdryer, or letting your hair dry after swimming.

Man, did you see Mark's crazy hair this morning? He had some crazy pilly foo goin' on!

Pilly Foo by Nyk Zukowski June 21, 2006