Define M.b Meaning

M.B

Morning Boner.....Some Guys Find This extremely annoying... Other are happy cause it means you get to fuck in the morning if you have a gf or bf

Sister: Good Morning
Brother: Oh Shit
Sister: What's Wrong?
Brother: I've got a M.B that wont go away
Sister:Sorry Can't Help You In That Department

By Ingrid

M.B.

The rap name for this fucking tight ass rapper from M Mafia a.k.a. Martin Mafia.

Trigger friendly, Haters envy, Roll in a Bentley, This your boy M.B.,

By Margalo