Crusty Mother

A Crusty Mother, also known as the Cunt Cutter, is a sexual act in which a male pre-dries his sperm before sex, and slathers it all over his dick in order to make it rougher and a more painful experience for the girl, or enjoyable if she is into that sort of shit.

"Bro, I just gave her a Crusty Mother. She'll be crossing her legs for weeks!"