Top Definition
Verb. To shake ones face back and forth while placed in between the butt cheeks of another.

Derived from the term Moterboating.
That stripper did not appreciate the man with greasy cheeks butterboating here without asking.
by Butterboater June 08, 2009
The act of motor boating ones buttocks.
She had small boobs so I ended up butter boating her instead.
by Muddypelican May 11, 2016
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