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1.
The act of hitting a person in the face with a penis, creating the image of a "cock" on their face. Mostly used in homosexual circles, although can be used as a practical joke among close friends or against a non-cooperating female.
"Yo I just cock stamped the hell out of will"
"That cock stamp is going to be there for a long time"
"Sometimes a cock stamp feels so good on my face"
by will "cock stamp" johnson May 31, 2009