Nine-Side

The act of throwing a small, hard object, preferably a nine-sided die at one's exposed toes, in the hopes of hitting the knuckle of the toe, inciting a rather painful experience on the victim.

Guy 1: "NINE-SIDE" Proceeds to throw the die at his friends toe.
Guy 2: "OMG!!! I HATE IT WHEN YOU DO THAT SHI*"