Ball-off
When two males go head-to-head in a ball-off they squeeze their opponents testicles progressively harder until one of the competitors gives up, making his opponent the winner of the ball-off.
(Ricky firmly grabs Randy by his ball-sack)
Randy: You wanna have a ball-off?
Ricky: I do wanna have a ball-off.
You think I wanna bang you? Come on!
Randy: You wanna have a ball-off?
Ricky: I do wanna have a ball-off.
You think I wanna bang you? Come on!
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