1 definition by fatmanshand

Top Definition
a plan(or anything that is highly intelligent) that can only be thought up by a ninja due to there high intelligence
guy 1 : i came up with a cunning yet highly intelligent plan to obtain more motes of earth
guy 2 : BS! tell me?
guy 1 : ok fine
guy 2 : woah that is a ninjenious plan
by fatmanshand April 14, 2008

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