well what do peoply mean by drop your balls there was a differnt q about a dog droppin its balls but I heard a guy say it to another guy in chool???
usually it means something like 'grow up' or stop acting like a kid, and kinda rude or insulting way to say it.
If your testicles have dropped that means you have hit puberty (for a guy that is), that's where the saying comes from I guess.