MFB

MY FUCKING BALLSAC.
An Acronym formed at the shores of Atlantic City by a group of bored teenagers meaning bullshit.
Steve:Man I banged both of those broads last night.
Joe:MFB, son. the only two things you banged were your left and right hands.
by ACjoe August 01, 2008
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MFB

1. Michigan's First Bank.

2. Motherfuckin Bitch
1. I went to MFB to rob some money.

2. She is an MFB.
by Qui Long July 10, 2009
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mfb

My sister is an mfb, seriously
by ashley demo September 19, 2006
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MFBS

Mother-fucking-bullshit
by bobbbbbbb12415 March 03, 2010
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MFBS

Everyone said that chick was DTF but she wouldn't even come home with me. That's some MFBS.
by sexkittenmeoowwwww October 17, 2010
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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!
by ilookmarvlus June 26, 2022
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mfb

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."
by GHOSTANON March 13, 2022
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