A crease or gash in the male genitalia of astounding girth.
Girl 1: Blowing John hasn't been the same since he got that assassin's crease.
Girl 2: What do you mean?
Girl 1: There's a huge crease in his dick from wearing those tight jeans.
Girl 2: Oh, my boy has one too, he got ran over by a snowboarder!
by cockles December 31, 2013
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