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
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...
There are eight major planets, but more than a million minor ones, including asteroids. If you discover one, you get the honor of naming it. The Dictionary of Minor Planet Names includes minor planets named for rock bands, jazz musicians, poets, and...