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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!
MFB by LOTR4eva1 January 1, 2012
Related Words
mfb MFBH mfbt MFBACS MFBC MFBF MFBA mfbap mfbatah MFBBB
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
MFB by bramcl October 10, 2008
mother fucking bitches. (read: master fu's basement)

a groupchat. filled with freaks. and gay people, especially naia.
"Oh no, it's the time of the month, those it's the time for those mfb to clog the tl with their freaky confessions again."

"I wanna join mfb sm!"

"How can I join mfb?"

"We weren't allowed to join mfb so we made a mfb-wannabe gc. we're so cool and WACKY."
mfb by GHOSTANON March 12, 2022
Mother Fucking Best-not to be confused with its homograph, meaning: "mother fucking worst"- Should only be reserved for the people 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
MFB by bramcl October 9, 2008