A generic name for ridiculously ultraviolent barbarian-type characters who exist only to murder and destroy and crush, especially in tabletop RPGs (where designing a character like that can be mechanically powerful, especially if the system penalizes you for having emotional attachments.)
The term comes from RPG.net, where it was originally mentioned in an ancient thread of horror-stories about terrible character names people have encountered. Often paired with Snake Gandhi, a similarly ridiculous name from that thread.
"So, yeah, the only weakness to this defense is if you're faced by someone you love... but if you play Killfuck Soulshitter, whose only intimacies are to Killfucking and Soulshitting, you're basically invulnerable."
A online user name, given in very rare circumstances, to a person who LOVES the game Star wars Jedi Knight Jedi Academy on the PC. Another large trait that such a user would have is the browsing of many forums, usually associated with clans/alliances, computer graphics, and programming language. Whereas this user may seem like they are 'casting their soul away' they aren't - Aside from there computer life, they have a casual 'everyday' family, whom he/she enjoys being around.