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?
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.
Stands for mom behind me. This is used when you are texting on the phone and u don't want the other person to send inappropriate language to you, the person behind you does not have to be your mom just someone you don't want seeing anything.
Guy: you're so sexy
Girl: hold up! mbm
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.
Mates Before Muff
To choose your mates over a female
Mate, you should have gone with that bird and left me, mbm man.
A troupe of Moroccan tumblers worked with the circus at the same time as I did. They were mbm