Definitions by Boo-BooFAF

FAF 

Fly As Fuck, a band of brothers who have been through hell and always stayed together, no matter what they always had each others back.

Hater: "yo, i banged yur girl last night."
Bro: "wait till i get FAF, we gonna stomp yo ass."

FAF by Boo-BooFAF September 1, 2011