Top definition
Sexual act of penetrating an obese woman:

Doggy style, placing the penis into the ass crack, then generously smacking the right and left butt cheeks simultaneously which generates a fatty suction wave, pulling the penis into a mystery hole, either the vajayjay or pooper.

Note: Requires minimal effort for penetration.
"Yeah man, last night I performed the Mystery Wave Rider on her in the hot tub!"
by UcanDoIt! March 23, 2009
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