Top Definition
n., adj., pl. -s
1. stupid or retarded (retarded in the slang sense, not mentally retarded)
2. an idiot or retard (retard in the slang sense, not mentally retarded)
1. Joe is being Krumb Knum right now
2. Soha is a Krumb Knum for doing the wrong homework
by BWANKER May 02, 2009

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