hammerhead
n.— «Erik again let me get away, but not before we both got called hammerheads for plowing up one of the hairpins as we passed a big pack. “Hammerhead back!…. Another hammerhead back!”» —“Re: Death Ride, or ‘Where I Died On My Summer Vacation’” by Bill Knowlin Usenet: rec.bicycles.rides July 22, 1993. (source: Double-Tongued Dictionary)
Further reading
A magnificent new book celebrates the richness and diversity of 450 years of written and spoken English in what is now the United States. It’s called The People’s Tongue, and it’s a sumptuous collection of essays, letters, poems...
A ballicater is a jagged wall of ice that forms on a frigid shore when pans of ice catch on rocks and slush freezes over them. A Canadian woman who grew up in Newfoundland says she’s warned never to go near one. Ballicater, spelled several ways...