butter box
n.— «In the slopestyle event, each rider has two runs down a course that features a rail for starters, leading to a significant jump and then a series of boxes—a long flat box, moving to what is called a “butter box” because of its resemblance to what’s in mom’s fridge, then to an up-and-down box and ultimately to a large berm with a barrel on top.» —“Rutland boarders take lead” by Chuck Clarino Rutland Herald (Vermont) Mar. 8, 2007. (source: Double-Tongued Dictionary)
Further reading
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