Definitions by SKUMMY

Chiefed in the ass 

To perform a bad ass move in the popular video game Halo 1, 2 or 3. It is named after the games protagonist, Master chief. This can only be done wile playing the Campaign mode on heroic or legendary.

Guy1: Dude get the 2 brutes in the raith!

Guy2: OH DAMN! They just got Chiefed in the ass!

Chiefed in the ass by SKUMMY November 7, 2009