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1 definition by Mynamedoesnotmatterinanyway

 
1.
Buttwings are small wings that can be found on the rear-end (butt) of something; they are generally found on non-existent things like Victini and anything that's free to buy.
Victini has a pretty prominent, but small pair of Buttwings that allow it to fly around and cheat the laws of physics.
by Mynamedoesnotmatterinanyway January 10, 2012