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The act of cockblocking, but exclusively referring to cockblocking done by individuals named Mark. Not to be confused with Markblocking.
Was out for a night on the town with a lady friend but my buddy kept on cockmarking me. That unaware bastard never takes a hint!
by yoloswag420blzit February 21, 2014
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To tattoo a mark across your pecker every time you fuck a new woman in order to keep track of them.
He's into cock marking.
by Jedge dredd7 May 12, 2011
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