stacking
n.— «Donesha said one of the teens who was later wounded began flashing gang signs at the other group—a practice known as “stacking.”» —“2 students stabbed, 1 cut in knife fight near middle school” by Mike Glenn Houston Chronicle (Texas) Dec. 20, 2006. (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...
While reading Great Expectations (Bookshop|Amazon) by Charles Dickens, a listener in Arlington, Texas, is surprised when one of the characters inherits some money, which Dickens describes as a cool four thousand. Were they really using cool that way...