A variant of wet willy, combining the best aspects of Pop Rocks and wet willys. The person licks or spits on their finger, and then dips it into the Pop Rocks bag coating the finger tip with a layer of Pop Rocks. Then the attacker sticks this finger into the victim's ear canal and twists. The key is to have ample saliva on the finger such that the Pop Rocks start popping right next to the ear drum!
1. (noun) He thought himself a pimp for pulling off a Pop willy against Nahir.
2. (verbified!) Damn!! he just Pop willy'd yo ass!