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Similar to a motorboat except instead of putting ones face between a pair of boobs,a man puts his face betwixt the ass cheeks of a 300lb+ woman and shakes his head back and forth in a "no" type fashion while using the mouth and tongue to make the "raspberry" sound. The huge buttocks amplify the raspberry into a sound similar to a trucker using his jake brake.
I can't get the image out of my head of "Mike and Molly" doing the motorhome
by wolfbait51 June 11, 2011
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2
A common site for low-cost porn films
The filming site for the hit movie 'Maggie-sue and the monster of cock'

This porno is good, must be a nice motor home.
by Gattenborough November 11, 2008
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