It means to play a game you are ecceptionally good at online against other people. An example would be Call of Duty Modern Warfare 2. You can only say this of course if you are actually capable of pwning noobs.
Guy 1: Hey you wanna pwn the noobs with me later?

Guy 2: I was just pwning the noobs like half an hour ago, I'll play tonight.
by the master bator 01 February 27, 2010
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To Pwn Noobs is to completely Obliterate your opponent in any event where their is competition though specifically originated from Online Gaming Terminology. Very similiar in nature as "owning new players".
Dude last night on CS:S I totally Pwned Noobs and they started to cry because i Pwn Noobs so much!!
by Cam Johnston June 19, 2006
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The art of slaying a person bad at something or new
friend 1 shoots friend 2 while playing b-ball
friend 2: what the f***
friend 1: sorry I just like to PwN nOoBs by the way you suck at it if you couldn't tell
by barrybeeisbae69 March 8, 2017
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A phrase used by people who feel the need to point out that they can defeat players that almost anybody else playing the game in question can, possibly to try and hide the fact that they may also be noobs themselves.
The only person that could not pwn a noob is another noob, if you find it necessary to state "i pwn noobs" then you must suck pretty badly.
by Mienaikage February 7, 2009
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