anti-nub
Someone who owns at a videogame and will always own at it. This person particulary targets noobs or nubs for personal enjoyment. An anti-nub is often exposed for being too serious while playing a videogame but doesn't care what other people say.
Anti-nub: THAT'S RIGHT I JUST KICKED YOUR ASS
nub: I'm a level 5, you're level 70
Anti-nub: EXACTLY!
nub: I'm a level 5, you're level 70
Anti-nub: EXACTLY!