What is Mbm?
1.
Mass Bowel Movement, when 5 people or more gang up and go take a crap in the same toilet so as to plug it up
-What's that smell?
-The janitors had an MBM because they wanted higher pay
-oh
See
2.
Married Black Male, Married African-American Male. same as mwm but black. usually found in classifieds, etc
MBM looking for a MBW for a discrete hook-up.
See
3.
marshall bruce mathers.
i love you mbm.
See
4.
mom behind me. Used in AIM to tell the perosn your mom or some one else is behind you and to keep converstion clean.
Bill: Lets smoke that weed on Saturday
Bob: MBM
Bill: wat you doin this weekend?
See
5.
Message Board Misunderstanding: Used to connote sarcasm on a message board, or to apologize in advance to whomever you might offend...
hey zeke. you're an asshole. <mbm.
6.
Mates Before Muff
To choose your mates over a female
Mate, you should have gone with that bird and left me, mbm man.
See
7.
mighty brilliant Moroccans
A troupe of Moroccan tumblers worked with the circus at the same time as I did. They were mbm
