A BIT of word playwitches' knickers n.pl. plastic bags that have caught in trees and bushes.
We here at BIT are well-travelled, discerning, enlightened, intellectually aware, and cultured enough to know that bags in trees are far from being a solely Baltimore-based enterprise (although we'd surely like to think so). No, bags in trees have been spotted around the globe and on several continents. Here's a sampling of some of the colorful names that the objects of our affection have garnered worldwide:
Snagged in treetops in Ireland, they become “witches’ knickers." Alaskans call them “tundra ghosts” and “landfill snowbirds.” In China, they’re “white pollution.” South Africans have sarcastically dubbed them their “national flower.”Now that's something worth writing to the mayor about!
[Via the Double-Tongued Word Wrester Dictionary]