The action of putting a glass mason jar on the erect penis, your partner then sits on it and clenches their asshole as hard as possible until the glass breaks and turns your dick into a poorly maintained hotdog with extra sourcraut

Over-The-Pants-Hand-Job. Distant cousin of the dry hump.

erotic video. Man squats over a small glass, lowering his anus, forcing the glass into his asshole. Upon completely entering his asshole, the said glass breaks. He proceeds to pull the broken, bloody pieces out of his asshole, while the horrified viewer screams and cringes.