black aspirin
n.— «I didn’t bother with the police that time just went round and counselled all of “em against it, offering plenty of “black aspirin” as medication should they need it.» —“Re: Dangerous Ground” by Rhino in United Kingdom Bravehearts’ Kilt Forum Apr. 2, 2004. (source: Double-Tongued Dictionary)
Further reading
If you speak a second or third language, you may remember the first time you dreamed in that new tongue. But does this milestone mean you’re actually fluent? And a couple’s dispute over the word regret: Say you wish you’d been able...