horse blanket
n.— «Horse blanket Very large sheet of paper pasted on a wall and used to brief complex data or diagrams.» —“Appendix A—Informal Staff Language” by U.S. Army ST7000, Action Officer Development Course Dec. 6, 2004. (source: Double-Tongued Dictionary)
Further reading
How and why do words from one language find their way into another? Vietnamese, for instance, includes many words borrowed or adapted from French, a vestige of colonialism. For example, the Vietnamese word for “train station,” ga, comes...
The Oldsmobile car was introduced in 1897, and shortly thereafter people began using the term oatsmobile or hay-burning oatsmobile to mean “horse.” OATS is also an acronym for Older Adult Transportation System. This is part of a complete...