PWNser
Someone who is a poser at PWNing people. In other words, they say they pwn people, for example noobs, but really dont.
PWNser says: Awww yeah dawg this morning i PWN'd some serious noobage on world of warcraft.
Real PWNer comes along: Dude you've never even played that game you PWNser
Real PWNer comes along: Dude you've never even played that game you PWNser