During gay sex of the anus. Or when females use strap ons. One person will yell "JUMPFROG" they will proceed to jump over the fuckees shoulders and become the fucker.
"JUMPFROG!" yelled Tom as he jumped over Chad's shoulders. He then proceeded to receive gay sex until chad decided to yell "jumpfrog! " a few minutes later.
by Simpleton Exuberant January 17, 2016
to challenge one to a duel i.e. to call someone out
Jump frog, I aint Kevin Costner I don't dance with wolves!
by Cacee July 11, 2005