A skateboarding trick where you ollie, pull your front truck over the rail, and slide on your deck, perpendicular to the rail. Arguably the easiest grind trick.
The first grind trick my brother learned was the boardslide.
by Ricky Benda May 25, 2005
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a snowboarding or skate trick. when you pop onto a box or rail, turning your body 90 degrees backwards, landing with your deck in a boardslide (perpendicular to the feature) facing uphill or backwards as you slide down the rail.
"yo, did you see that kid's frontside boardslide on that DFD rail, sickk..."

"i smashed my face slipping out on a frontside yesterday."
by t-fried-rice. March 6, 2009
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