Jock is the slang term for an athlete. It is a reference to a jock-strap, a men's undergarment used specifically for sports.
yes
yes
Wear a jock strap.
athletic supporter
put it on like a pair of underwera
the one you can wear in public
Banana Hammock
Has visto mi suspensorio?
Put the cup in the jock strap and tell him to wear it like underwear...
Yes. A lot of youth sports leagues require athletic supporters and/or cups.
It's a little bit uncomfortable at first to wear a jock strap, especially if you're not used to it. But it feels better to have good support when you run, and to not worry about getting hit down there.