When someone is acting stupid, and or retarded and won't stop. Getting on someone's nerves for acting like a child, or just trying to be annoying, and will not act serious
by nubbin6969 May 21, 2011

A definition similar to noob or n00b, who is someone who does not know anything about a topic. A nub is someone who has been doing something for a while and has had the opportunity to learn it, and they usually claim they know a lot about the topic, but they still don't know much about the topic.
The guy at rathcast.com is a total nub. He claims he knows sooooo much about computers, but his website is atrocious and he doesn't know a thing I don't know.
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