fly as f*ck... this is a very elite group... in order to gain entry into it you must do something manly. i.e.: playing butt bash or lighting your manhood on fire.
a group of c-town boys who can't be stopped. due to reasons of vulgarity, it's also known as 'fast and furious.'
anyone who has the sticker on the back of their vehicle is FaF.
dude... he lit his cock on fire. he's FaF fo' sho'.