lilywhite
n.— «What became quickly obvious was that neither MI5 nor MI6 knew anything about these four. They were, in the vernacular of counter-terror officers, “lilywhites.”» —“The call that cracked the case” by Daniel McGrory The Australian July 14, 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...