high-marking
 n.— «Police in western Canada are cautioning snowmobile users against performing a dangerous straight-up tactic that killed an Alberta man last weekend. The practice is called “high-marking” and involves a competition as to who can leave the longest trail in the snow straight up a mountain face.» —“Snowmobile thrill ride turns deadly” by Revelstoke, British Columbia United Press International Feb. 19, 2008. (source: Double-Tongued Dictionary)

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