MB

Someone who posts lyrics all the time, often annoying others.

Person A: "Let's find the key we've lost, as all the people cry in vain"

Person B:"Don't be an MB."

by Auradyme December 10, 2016

MB

An acronym standing for Marching Band. Used by people online when messaging people publically,such as MySpace or Facebook, to avoid the criticism or questioning of other people.

James: Hey Mike are you doing MB next year?
Mike: I can't, I'm joining the football team.

by -=[DeTeRMiNaTioN]=- August 05, 2009

MB

short for Mercedes Benz.

He drives a hot MB SL500!

by DTNS January 25, 2009

MB

MANipulative Bitch

Don't listen to her. She's pulling an MB on you.

by HateBucket30 April 29, 2010

MB

morning bulge; when you wake up and notice that your dick is poking your pants, thus forming a bulge

I don't get embarssed when my mom notices my MB coz its only natural and happens to all teenage boys

by tory borty May 07, 2013

MB

A short term for Money Boy which is basically similar to Working Girl but it’s a boy

He is a quite famous MB

by The_holy_avocado:)) March 06, 2019

MB

Make-believe.

Fights in real life don't work like they do in movies, it's all MB.

by bitstripslang October 11, 2019