a shorter version of My bad

Online gamer speak for "my bad."

Masturbate or Masturbation

Also can be said, "MBing"

MB is the not so secretive act of:
a. inserting a hairbrush, remote, or dildo into the pussy (ass)
b. using a toothbrush on yr clit

Mage Bank in RuneScape. People say they're mb pk'ing when they are player killing in the wilderness at the mage bank.

mad bastard

major boner!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

can be used from looking at a guy/ girl to one's arousal

An expression when you'are a shitty player in the KVLT game : Starcraft.

MB = my bad