horse blanket
n.— «O.C.T. is an acronym for observer-controller-trainer. These are usually Iraq veterans certified to act as teachers on immersion battlefields. OCTs use a “horse blanket,” or a large board listing all the training phases and the week they are supposed to be held.» —“Soldiers’ lingo gives everyday language an added flair” by Peter Guinta St. Augustine Record (Florida) June 6, 2005. (source: Double-Tongued Dictionary)
Further reading
Is there a term for words that simply feel good as you form them in your mouth and say them? Linguists sometimes speak of mouthfeel, an expression borrowed from the food world. They also talk about phonaesthetics, the study of the sensuous...
It’s hard to imagine now, but there was a time when people disagreed over the best word to use when answering the phone. Alexander Graham Bell suggested answering with ahoy! but Thomas Edison was partial to hello! A fascinating new book about...