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
If you’re ever near a sundial, step closer and look for a message. Many sundials bear haunting, poetic inscriptions about the brevity of life. Plus, language development in toddlers: why and how little ones pick up the exclamation Uh-oh! And a new...
If you mistype something, that’s a typo. But what do you call it when your voice-to-text program mistypes as you’re dictating? Is that a mico, as in microphone? Plus, the word sycophant has a long and surprising history that goes all the way back to...