sit-ski n.— «Of course, this is done while skiers are strapped into a seat and perched atop a shock absorber and a single ski. The rig is sometimes called a “sit-ski.”» —“Winter X Games: One ski, but twice the...
whoop de doo n.— «On the second day, we encountered 29 km of whoop-de-doos. For those unfamiliar with dirt bike vernacular, picture the harshest mogul run you’ve ever seen, lay it out horizontally, throw in some sand and you have whoops...