Noun:
1. A single testicle, akin to a uniball. The result is reminiscent of the children's game: A single ball tied to a pole.

2. The term can also be used to describe someone with this condition.

Verb:
To cause someone to lose one of two testicles.
Noun:

1. Since Josh has a tetherball, his sperm count isn't as high as the average man's. But his biking has really improved.

2. "Yo Tetherball, you probably shouldn't go to the spermbank with us: You need to hold onto what you've got.... Plus, no one wants a baby with one nugget."

Verb:

"Oh damn, I think that girl just tetherballed me with that kick!"
by drotic October 06, 2009
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When one man takes his penis and hits the ballsack of another man and tries to wrap the ballsack around his penis. They take turns and the first to wrap it is the winner
The two blatantly gay men went to play tetherball in the bathroom. The game ended quickly as the one with the sunglasses wrapped it on the first try
by Jtoll October 20, 2009
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When you have a bloodclot hanging from your tampon string.
"Man when i wiped i pulled the clot from my Tetherball"
by Chavela September 18, 2006
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A person who has only one testicle. The condition results in a situation similar to the game - one ball tied to a pole.
"I heard that kid's a tetherballer. He lost one from a roman candle shot to the junk!"
by Jake Jarmaine April 21, 2009
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Tetherballs: A sexual action between two opposing players consisting of a stationary penis and a testicle(s). The objective is to strike the testicle(s) (clockwise or counter clockwise) until the "ball(s)" winds all the way around the pole and comes to a complete stop.
Jesse: Hey Chris remember that hot hore from the gym? The one with the nice ass?
Chris: Yeah.
Jesse: Well, I got her to play tetherballs. I let her win cause she's a girl...What are you doing later today?
by Pope Bentdick LXIX August 04, 2010
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when older men develop saggy balls.
"Wow George, Your tetherballs are hanging lower than ever!"
by Sexappeal Leal August 17, 2007
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When a male has nuts so big they swing around the shaft of the penis.
Hey Lisa, wanna see my tetherball pole go all the way around?
by Staycreative. April 17, 2017
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