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 SimplyExuberant January 17, 2016
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