A term derived from the video game world meaning someone who who is new at a game or activity and is horrible at it but is not willing to learn and does not acknowledge the fact of such. Noobs often boast over skills they do not have and accuse the honorable player of "cheating" or "haxing" when killed or defeated. Noobs are also known for their unique form of broken English. I will elaborate below.
*Noob gets owned by sniper while running out into the open*
Noob: WTF NOOB!!! YPU HAXING NOB OMFG WTF I PWN YEU ALL!!
Experienced player: its cool dude just come back to base and switch your weapon.
Noob: STFU NOOB! IL FUKIN OWN YOU!!!!!!!!!!!!!!! 1v1 ME FAG!
Experienced player: *sigh* as you wish...
*noob gets horribly owned to oblivion*
Noob: FKU YOU NOOB YOUR MOMS A FAG!!!!!!!!