Top definition
Superman Jap Slap is when you perform the martial arts move of the “Superman Punch” but instead of punching, you slap your opponent with an open palm moving in a downward diagonal motion right-to-left (for right handers).
Dude, that student just got Superman Jap Slapped by his teacher!
by Mr. Beef Wellington January 24, 2019
Get a Superman Jap Slap mug for your Facebook friend Callisto.