1. A punch delivered with the middle joint of the middle finger sticking out more than all of the others. The punch is delivered in a vertical manner so the middle joint of the middle finger impacts the center of the recipients skull/scalp. This maneuver generally incites inconsolable rage in the recipient.
1. To perform a koopataso punch.
After receiving a koopataso from a stranger, Shyne flew into a rage and shot up the club.