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1.
The spawn of a nub. Aka you are the child of a nub, which is drastically worse than being a noob or a nub. This is usually used to refer to someone who fails at life.
April: What's Call of duty?
Parker: Nubspawn.....

Collette: What's a noob?
Jacob: Nubspawn!
by Nobody888 October 01, 2009