Started in a high school in Arizona, where there was a girl who just had nubs for arms. We called her "nubs". The word became popular in our group for something lame and failing at life.
Not pertaining or related to the word n00b or gaming.
Zach: I have TiVo and all I record on it is King of the Hill.
Bryan: Shut up you nub. (Followed by a pimp slap)
Alex: Fuckin nub.
-or-
Alex: Man, that band that played at our school sucked.
Bryan: Yeah, they really need to stop with all that nubbery.
A combination of noob and scrub. A particularly poor player that exhibits less skill than the regular new player. Someone who is so bad, that even a total newbie could show them up.
A general idiot who seldom acts their age, often said to be cute due to their lack of intelligence and/or maturity. A childish person who can be found obsessing over dumb games and generally living in an oblivious state, but is so lovable that their flaws are easily overlooked