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noun: the figurative "rise" that is stimulated by news, rumor, or direct experience of a large accumulation of snow. Often experienced by those who pursue snow sports, e.g. skiing and/or snowboarding.
Skier: Hey did you see the story in the paper? Mount Furry Elephant got three and a half feet last night."

Boarder: Dude, I get a snowrection just thinking about it."
by playa_foot March 28, 2011