B(f)AMF 

-Double Entandre:
~BAMF: Bad Ass Mother Fucker
~B(f)AMF: Brother from Another Mother Forever

Basically two uber bad-ass tight friends who are more then just BFFL's

Person A: Dude, your like my best bro!
Person B: Fuck that man, we're B(f)AMF's

B(f)AMF by Ian Palmer May 10, 2008