A Solid Punch

Without any warning you strike him directly in the groin, but it didn't seem all that effective.

"That's a shame" he says "you really should of gone under. You caught my cock more than my balls"

You mentally kick yourself for not thinking about that possibility and make a note to adjust yourself later to have a similar defense.

You put forth your right hand and your opponent does the same

"Rock

Paper

Scissors

Shoot!"