foo' 

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'!

foo' by Aaron December 23, 2004

Foo' 

Abbreviation for foo'

Get the Hell outa my face, foo'!

Foo' by HotelOverlook.com November 17, 2003

foo 

A slang word commonly used by the Hispanic population to identify a friend or homie.

What's up foo.

foo by mandashwell June 27, 2019

foo 

a slang of the word "fool"

wassgood foo how you been

foo by leafy makes words November 30, 2020

Foo 

The Foo were a species that terrorized the earth for many eons, until the Foo Fighters appeared, and drove the species to extinction.

“What is a Foo?”
“Tf do you mean?”
“Never mind”

Foo by The foo fighter February 20, 2020

foo 

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;

foo by Dahhak July 20, 2004

foo 

A (presence/force/being/no one really knows) that is the biggest threat to our civilisation and could collapse all economies around the world in an instant. Luckily the Foo fighters have been fighting the foo and protecting our delicate social constructs from this almighty enemy.

Bro 1 - ~ literally nothing ~
Bro 2 - Thank fuck for the foo fighters
Bro 1 - tell me about it, i wouldn’t be able to sleep if it wasn’t for those bloody legends

foo by Wallis21 February 21, 2020