a choob is a person, usally in an online rpg, who has been playing the game for a long time and is high level but still acts as if they don't know how to play the game and continusly scams, lies, spams, and trys and use terms to make themselves seem big and smart and crap.
A gamer who is unable to handle when they die, and often calls the other players "hackers" with no evidence to back it up. If you think their play style indicates an inferiorintellect, well you'd be right. Just your average butthurt gamer.
A high level player, on MMO's such as Runescape, playing on a noob account as to not draw attention to themselves. High profile players or high level players will turn to their choob to get away from the stress popularity and celebrity brings them.
Noob 1: OFMG! Did you hear that guy? He said he was Zezima's choob!