Slapping your dick against the girl's face. Also known as a Danza Slap, and usually shortened to Chim Pap.
John W.: "My french fry brings all the boys to the yard, damn right. It's better than yours; I can teach you, but I'd have to chim pappy..."
"Man, she was sucking my dick, and just when she didn't expect it... WHAM! I gave her the ole Chim Pap."