dirt Navy
n.— «I’m not likely to end up back on a ship anytime soon (if ever).…You could say I’ve gone from the “blue-water” Navy to the “dirt” Navy—or the “sand” Navy in this case.» —“Looks like I’m goin’ to the Gulf for a Year…“ by An ex-Squid FirstOnes.com Forums Dec. 19, 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...