pasture puff
n.—Gloss: a horse or other animal that has been retired from a working life. «I’d rather not go the injection route in a horse his age. His best days are behind him, and now he’s just a pasture puff. I just want him to be a happy pasture puff.» —“Favorite Joint supplement?” by kim in Ohio Exracers.com Forums Aug. 28, 2007. (source: Double-Tongued Dictionary)
Further reading
How do you pronounce the word route? Does it rhyme with “boot” or “bout”? This is part of a complete episode.
Related
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...