I can only see it now:
noob /nub/ n. 1. One who is inexperienced at something, particularly a video game. Ben is such a noob, he got killed on the first level.
noob ish /nub ish/ adv. 1. To act in the manner of a noob. It was acting noobish when I accidentally erased your hard-drive.
For the above "respellings" imagine I have a line over the "u"