Old man balls are when older men's junk becomes one large grapefruit sized, saggy ball. There is no longer the ability to notice two balls, except one large sagging nut.
Example: did you see those old man balls on that guy? Looked like he was sitting with a grapefruit in his pants
Example: while having sex my taint was slapped by his old man balls
noun: droopy, wrinkled, testicles that belong to a man 45 years or older. Just the thought of old man balls (more commonly referred to as O.M.B.) is enough to make you shudder with disgust.
Girl 1: "So, how is Paul in bed?"
Girl 2: "Oh man, he was turning me on and all, but then I saw his Old Man Balls (O.M.B.), and I would have needed to do some meth to get on that!"
Ruler of Lake Titicaca. Rumored to have a bunghole that gets very angry if it does not receive toilet paper. Cornholio the Great is often seen walking around with his shirt over his head and his hands in the air, chanting songs about his power, and his bunghole.
"I am Cornholio! You do not want to face the wrath of my bunghole, for I need TP!"
Butthead: Shut up, Beavis! (uh huh huh huh)
Beavis: Um, okay. (heh heh heh heh).