Top definition
The art of 69ing while shitting or urinating on your clueless partners face. While head butting their genitals, making them scream out like a person with down syndrome.
Jim- "dude yesterday your mom and i totally did the Cleveland upside downer"

Ron- "thats messed up man she has down syndrome!"
Jim- "oh no wonder she was screaming like a dumb ass before i gave her the head but"
by Zswen April 30, 2014
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