yellow dog
n.— «They are safer, larger and more advanced in every way than the widely held image of what are commonly called “Yellow Dogs,” the brightly painted, drafty and rattling, but reliable, buses of an earlier era.» —“Editorial: Bus Safety” Daily Journal (Tupelo, Miss.) July 18, 2005. (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...