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
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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