noun A newb or newbie; someone who is new to a game, concept, or idea; implying a lack of experience.
Noobs are annoying, they never know the forum rules.
noun Someone who is obsessed with something; a nerd.
Don't talk to that pessimistic philosophy noob. He'll shut you down by lamenting for seventy minutes about the "karmic imbalance", and then he'll literally be panting for breath by the end of it.