The practice of manipulating the channels of transportation afforded by a couch, snow (and/or ice) and a sloped surface. A one-way trip in the absence of a truck, van or other gas-powered hauling device.
Roommate 1: "Bro, we snowcouched that shit all the way down 18th."

Roommate 2: "Snowcouching? Is THAT why there's no furniture in the living room?"
by bobross January 27, 2010
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