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
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...
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...