Ball Dropping

[Freshprince]

Ok so im 13 and how am i supposed to nkow if my balls
dropped or not?

[MoveAlong]

you balls do not drop during puberty. That is a term which means nothing. Your balls actually descend into the ball sac before birth.

You can find out if your balls have dropped by pulling your pants down and feeling your balls in a bag of skin called the ball sac. If this has happened, your balls have dropped. if this hasn't happened, you need to ask a doctor why.

[Oblivion]

Zach is right
Also, sometimes it refers to when your balls suddenly get larger during puberty, and that can happen anywhere from the start to end of puberty [roughly 12-mid 20s].