wiper-blade

(v.) To cum on someone's face, then place your testicles inside the victim's mouth and wipe the full length of your cock back and forth across their face like a wiper blade on a car.

Blake: Hey babe, can I wiper-blade you tonight?
Jenny: Are you sure? Last time I almost bit your balls off.
Blake: That's okay, I'll just wait until you're asleep.
Jenny: I love you.