whoop
n.— «Much of the trail has developed a “cupped” condition, with a large berm of soil having built up on the outside edge of the trail. In places, the cupping is quite deep, and the undulations in the trail (known as “whoops” in motorcycle parlance) are growing.» —“Volunteers Work Howard’s Trail” by Chris Leman SunValleyOnline.com June 19, 2007. (source: Double-Tongued Dictionary)
Further reading
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