Noob = Newb = newbie = someone who is new at something. So when someone says
XXX is noob it means that the person is new at the thing.
It is usually said in games to people who suck at them because they play like a new guy.
Pwn = Own = when you defeat someone at something you can say these words.
This topic was mainly for illidan so he knows when and when not to use them.
Using these words in a forum makes no sense because you cant defeat anyone here since its not a game. Please take this into mind before you make a bigger idiot out of yourself.