Originating from an MMO referred to as DAoC, a "bragian" is someone that comes out on top against the odds. It is usually used to describe someone that is very powerful or to describe an amazing act, yet always in the connotation of respect.
1. a powerful, feared, and/or respected player.
1. to win against the odds.
2. to destroy or dominate.
Dude, you just killed that entire group solo. What a bragian.
OMG, you just bragian'd that group! They must feel like idiots dying to one person when they had eight.