blue ice
n.— «Stan Walchesky and neighbors on Neupert Road in Jefferson began noticing the stuff last week and speculated that it was “blue ice,” the euphemism for the chemically treated lavatory waste that sometimes falls from airplanes.» —“At least Prince isn’t a suspect” by Brand Keat Pittsburgh Tribune-Review (Pa.) Dec. 23, 2005. (source: Double-Tongued Dictionary)
Further reading
Book recommendations and the art of apology. Martha and Grant share some good reads, including an opinionated romp through English grammar, a Spanish-language adventure novel, an account of 19th-century dictionary wars, and a gorgeously illustrated...
If someone urges you to spill the tea, they probably don’t want you tipping over a hot beverage. Originally, the tea here was the letter T, as in “truth.” To spill the T means to “pass along truthful information.” Plus...