one off
n.— «One off. This is a comparatively new figure of speech frequently used to mean “privately,” as in, “You and I will talk about this one off, after the meeting.” It is also apparently why, according to many of you, nothing gets decided in meetings anymore» —“Business Buzzwords That Make You Gag” by Anne Fisher Fortune Aug. 3, 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...
Stunt performers in movies have their own jargon for talking about their dangerous work. In New York City, the slang term brick means “cold,” and dumb brick means “really cold.” Plus: the East and Central African tradition...