A fork of Rural Dictionary
Mother Fucking Beast. Someone who is the greatest at something.
P1: Did you see Sam make that touchdown?
P2: Yea, he's a MFB at football!
Mother Fucking Best-not to be confused with its homograph, meaning: "mother fucking bitch"- Should only be reserved for the people and things in the highest tiers of the world. The titles of all MFBs are mutually exclusive to all others in their profession. Examples: Warren Buffet, Madonna, Google
Wow Tiger Woods is a MFB
MFBS = Mother Fuckin' Bull Shit.
Everyone said that chick was DTF but she wouldn't even come home with me. That's some MFBS.
MFBS is the acronym for "more fucking bullshit" a very common situation.
All that time I spent researching that product for Amy was just MFBS!