dirty treefrog

The sexual act of finding a frog, preferable a treefrog due to their slimyness, and putting your foreskin in its mouth multiple times. You then store the frog in you butthole for later use. If you are gentle enough the frog will survive and have babies resembeling the teenage mutant ninja turtles except they will be more froglike. However, they will still fight evil villains and are even better for mouth raping than the original frog.