noun Slang: Usually Disparaging.
Origin of noob
British Dictionary definitions for noob
Word Origin and History for noob
c.2000 in gamer slang, variant of newbie; often used interchangeably with it, but also often with a more derogatory shade of meaning; newbies owe their clueless behavior to lack of experience and can improve, while the fundamental characteristic of noobs is incorrigible obnoxiousness or stupidity.