alligator hide
n.— «Sometimes, the tire fragments cause accidents. Damage to vehicles resulting from contact with flying “alligator hides”—or as a result of swerving to avoid them—is a common hazard of freeway driving.» —“Beware of the highway alligators” by Eric Peters Washington Times Nov. 10, 1998. (source: Double-Tongued Dictionary)
Further reading
Many of us struggled with the Old English poem “Beowulf” in high school. But what if you could actually hear “Beowulf” in the English of today? There’s a new translation by Maria Dahvana Headley that uses contemporary...
What if, instead of being an inanimate object, a dictionary were alive? That’s the idea behind a lavishly illustrated new children’s book called The Dictionary Story (Bookshop|Amazon) by Oliver Jeffers and Sam Winston. This is part of a...