A fork of Rural Dictionary
When a male wears a small type of brief, thong, or swimsuit and one of his balls doesn't have enough room to fit so it hangs out of the brief, thong, or swimsuit.
Jack went to the pool and got arrested for public indecency because he got caught for side ball because he was wearing a really small speedo.
dude i fucked her then i fucked him, i play both sides of the ball
Same thing as side boob but with ones balls.
“Did you see Gore’s side ball?”
“Yeah he had an orange bush, too!”