mb

a shorter version of My bad

Joe: ur a bitch
Sally: No im not
Joe: Oh ok mb

by Joeness August 9, 2007

mb

Online gamer speak for "my bad."

CptStone324: GOD WTF
AlphaX: mb lol

by T Hizzle May 2, 2005

mb

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

OMG! I just owned a noob for whip at mb!

by Gre8est_Sk8r December 10, 2008

mb

my boi or my boy

boyfriend : i love you my girl
girlfriend : i love you too mb

by Wierdo💖 May 9, 2019

mb

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

MB = my bad

Player : What kind of jerk are u? What are u doing ?
Noob : mb

by Pornocio September 28, 2006

mb

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

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

after looking at her, i had a mb!

by mikerules111 February 27, 2007

mb

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

Kelly MBed with her stepfather's toothbrush.
Liz MBed in a Methodist Church once!!

by NatureLover111 October 17, 2006