1. Stick your hand down your pants and grab your nuts for a bit.
2. Distract the person you wish to Nutz, getting them to turn their head in any direction, so they are not paying attention to you.
3. Quickly smack the underside of the distracted target with your hand that was used for fondling your self.
4. Yell, "Nutz!", at the person after and then tell them to look up this game on Urban Dictionary. ( or explain it your self )
Daniel: Isn't that your girlfriend across the street?
Earl: Where? *Turns head*
Daniel: *Smacks Earl's chin* "Nutz!"