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jam-session halfpipe competition
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| jam-ses·sion half·pipe com·pe·ti·tion (plural jam-ses·sion half·pipe com·pe·ti·tions) |
noun |
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| Definition: |
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snowboarding competition: a snowboarding competition in which riders are allotted a particular length of time to ride the U-shaped snow structure halfpipe without stopping and are judged for their skill
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