Top definition
A man with a bus sized dick. He might not look the best but you won't want to be looking at his face.
Guy 1: Hey what's wrong with her?
Guy 2: I don't know.
Guy 3: Her boyfriend is a Markum.
Guy 1: Ooohh.
Guy 2: Yep that makes since on why she looks crippled.
Guy 3: I wish I was a Markum
by MrMarkum March 02, 2016
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