hammerhead
n.— «National competitions have developed since the first “hammerhead,” a self-descriptive term used among hardcore bikers, plunged downhill on a ski slope.» —“Mountain bikers are taking the plunge in the Carrabassett Valley” by Brian Swartz Bangor Daily News (Maine) June 15, 1995. (source: Double-Tongued Dictionary)
Further reading
In the 15th century, the word respair meant “to have hope again.” Although this word fell out of use, it’s among dozens collected in a new book of soothing vocabulary for troubled times. Plus, baseball slang: If a batter...
Asthenosphere, a geologist’s term for the molten layer beneath the earth’s crust, sparks a journey that stretches all the way from ancient Greece to the author of Uncle Tom’s Cabin. Plus: What the heck is a dogberg? It’s when...