nubscumbag Posted in N Best definition nubscumbag A person who is a “nub” and a “scumbag” at the same time. Which is probably the worst insult ever. Rinor, you are a nubscumbag How satisfied are you with the definition? Looking for nubscumbag meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 41 times.