Balldozing is an exciting sexual maneuver in which a man (the balldozer) first enters the female in the missionary position.
After a series of thrusts in which the man's testicles smack off of the females anus, the man removes his penis from the woman's vagina and drags his balls up her stomach and chest to her chin where they rest while he finishes in her mouth.
Score extra points for a slimy streak.
"What's that streak on Vicky's chest and chin? Is that some sort of religious marking?"
-"No, Mike was totally balldozing her in the pool rec room!"