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To reach puberty for a boy.
God, I wish that kid's balls would drop so we didn't have to hear him screeching all the time.
by Plush Terry October 28, 2004
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Something that Justin Beiber has yet to experience.
Amber: I love this song!

Amanda: Yeah, this girl has a really great voice.

Amber: That's Justin Beiber.

Amanda: Well maybe one day when his balls drop, nobody will make that mistake.
by advaschechel March 17, 2010
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When a boy reaches puberty. During puberty, the penis grows larger and longer, and the testicles enlarge and grow hair. Before puberty, a boy's scrotum will be on the penis. During his puberty, the boys scrotum will enlarge and hang off his body more.
"Hey, has Mitchell balls dropped yet?"
"No, he ha not hot puberty yet and his balls are still close to his willy
by The_real_Mitchie March 19, 2017
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