The act of excessive masturbation without any lubrication until your penis is very swollen the Night before a big date to give the illusion that you’re cock is thicker than it actually is.
“Hey man. Are you ready for your big date later today?” Oh yeah. I did the ol’ Dirty Davey last night. I can’t wait to see the look on her face.
a technique usually employed during the rear entrysexual position in which a man places his finger in his own ass and then rubs his finger along the upper lip of his unsuspecting partner; variant of the Dirty Sanchez
the act of defecating into a tube sock, and slinging it around, releasing it in the direction of a large person, as in the biblical story of David and Goliath. If properly executed, the dump-filled sock will splatter on said large person.
Having naughty thoughts about someone you work with that are so intense, you can't help but play the skin-flute at your cubicle while your surrounding cubicle mates are out to lunch.