Derivation of the word 'nub', which itself is a derivation of the word 'noob'. Someone who is a complete and utter example of what NOT to be. This could be someone who exhibits horrid, distastefully bad skills, or a lack thereof, at something OR someone who has a very dorky loser-like appearance.
Wow, that kid's a comPLETE zub! Yeah, that one with the giant yellow helmet riding the Power Rangers bike. I bet he'd be horrible at Halo.