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 1, 2008

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

mfb

by ashley demo September 19, 2006

Mother-fucking-bullshit

by bobbbbbbb12415 March 3, 2010

Everyone said that chick was DTF but she wouldn't even come home with me. That's some MFBS.

by sexkittenmeoowwwww October 17, 2010

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

by LittleSuzieL. December 8, 2022