Top Definition
A big black guy that likes to pretend to be a ninja. He may be hiding behind you right now scheming his dastardly plans. Also markwaun is a practitioner of black magic and uses it to help him in his plights of conquests especially on the toilet. Markwaun is the epitome of stupidity and is comparable to a lomax in appearance.
Did you that see that lomax walking around. Naw that's markwaun son.
by Jimmy_Johns_MA March 10, 2013

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