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.
by -=[DeTeRMiNaTioN]=- August 05, 2009
by HateBucket30 April 29, 2010
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
by The_holy_avocado:)) March 06, 2019
Make-believe.
by bitstripslang October 11, 2019
by MrStealUrDefinitions;) December 18, 2019