Top Definition
A person obsessed with martial arts culture who, whilst confident they could kill a crocodile with their bare hands demonstrates little in the way of technical merit.
Dan: "I'm a fifth degree blank belt in karate. I once back flipped over a moving tractor but no one saw me"

Matt: "Whatev man you're such a n00bninja"
by FuriousB March 23, 2009

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The Urban Dictionary Mug

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