To Motorboat the butt-cheeks, not the breasts.
That girl has such a fat ass, I just want to Motorbutt her!
by Zach and Claire February 25, 2008
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Kids with motors in their butts that have endless energy and never stop moving, running their parents ragged.
Where is Gleb? He is motorbutting around the flat. The kid never stops!
by papa_john February 20, 2011
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Yo, Jimmy, have you tried that motorbutt move yet? It's ass fun as motoboating.
by rupicaprarupicapra January 3, 2018
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