A man who tries to prevent you from getting your cock into a woman's vagina. Generally done by friends who are jealous of your pimping skills or guys who hate you because you're about to steal their "dream woman."
by NEGRO SANDIA October 29, 2003
A woman or lesbo blockin her friends from chatting with men or blockin her male friends so she can have her all.
hey britney, why s she blockin me from getting some ass? she s a real cock blocka..
by BLUE December 24, 2002

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