Torbjørn is a war cry, or some kind of swearing word, which originated in Hamar, Norway, when a guy called Torbjørn was hit by a car, and survived without any further harm. His friends then started shouting his name in anger while playing online games.
(While engaging in combat in Halo on XBox Live:)Torbjørn!!!!!!
von Yami93 10. September 2007