wire
n.— «Those of us who conduct missions “outside the wire’ on a regular basis have come up with a variety of terms to refer to those who remain safe and comfortable on base.» —“Fobbits and other Iraqi critters” by Steve Smith in FOB Bernstein, Iraq ArmySteve Nov. 12, 2004. (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...