Placing one's testicles on the back of someone's head and then letting your penis drop in a clapping motion onto their forehead and possibly chin, depending on the penis.
Me: "I totally Cock-Clapped James last night!"

You: "What's a Cock Clap?"
by spankmonker420 May 11, 2010
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When you snipe some one with your fat cock in face.
Brian was tight at Mario and told him to Clap Cock.
by Yerr21 August 19, 2018
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