FO 

fo means friends over

Me and Jake are fo.

FO by kyott October 10, 2017

FO 

knitting term, stand for Finished Object. Often used on Knitting Blogs.

"lets go to SnB to show off our FOs!"

FO by Othlon December 19, 2006

fo 

1. Gangsta shortening of "for"

2. The number following tree

3. Short for mofo, which in turn is short for motherfucker.

1. "Fo shizzle mah nizzle" is a phrase that has become WAY overused.

2. How come you paid tree fitty, I hada pay fo dollas.

3. He is a badass fo.

fo by someone18 September 11, 2006

FO 

FUCK OFF

dude FO im sick of you..

FO by Samm1 November 8, 2009

fo 

fucker
comes from cutting mofo in half

that fo just ran over my dog. fo.

fo by alphonso October 13, 2004

fo 

a misspelling of "for" when someone is typing a mile a minute, or in capitalised form, the hypothetical compound of oxygen fluoride

Hey! That oxygen flouride is fo the birds!

fo by eszett March 8, 2003

Fo 

Short for a fourty Oz. bottle of Malt Liquor, preferably in OE or Big Bear.

"Yo, man, we're gonna need about 6 Fos tonight!"

Fo by Donatello Quentinstein Kennedy Ripken Sr. September 20, 2007