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Someone who is very silly, nonsensical, while thinking they are intelligent or refined. Also, this can be someone who is very crude, crass, and down right messy while believing they're prim and proper.
After raising her pinky while eating very messy ribs, Jesse was adorned with the label ninnymonster.
by Parkindark134 April 14, 2009

Words related to ninnymonster

crazy crazyface crazyhead loco ninny silly