sandbox
n.— «They call it the “Sandbox Express.” For seven weeks, crews from Andrews like this one have endured a grueling, round-the-clock schedule ferrying thousands of tons of cargo and tens of thousands of troops to bases in Saudi Arabia and nearby countries.» —“‘Sandbox’ Flights Tax Reservists” by Peter Baker Washington Post Sept. 30, 1990. (source: Double-Tongued Dictionary)
Further reading
A ballicater is a jagged wall of ice that forms on a frigid shore when pans of ice catch on rocks and slush freezes over them. A Canadian woman who grew up in Newfoundland says she’s warned never to go near one. Ballicater, spelled several ways...
The Merriam-Webster.com dictionary now includes an entry for TL;DR, also rendered as TLDR. It’s a speedy way of dismissing overlong text or introducing a shortened version of something. This useful locution also inspired AI;DR, short for AI;didn’t...