Shortened from newbie.
newb (plural newbs)
- (Internet slang, sometimes pejorative) A newbie; someone who is new to a game, or has a new character.
- That guy must be a newb at this game. He has no idea how to play.
- (Internet slang, pejorative) when said of an experienced player, an admonishment from another experienced player that the first player has made a beginner's or careless mistake.
- You fell right into that trap - you newb!
newbie — see newbie