cabooses

Noun

caboose (plural cabooses or (nonstandard, humorous) cabeese or (nonstandard, humorous) caboosen)

1. (obsolete) A small galley or cookhouse on the deck of a small vessel.
2. (historical) A small sand-filled container used as an oven on board ship.
   • On the second day out, while sailing moderately on our course in the Gulf Stream, a sudden squall of wind struck the ship from the SW. and knocked her completely on her beam-ends, stove one of our boats, entirely destroyed two others, and threw down the cambouse.1821, Owen Chase, Narrative of the Most Extraordinary and Distressing Shipwreck of the Whale-Ship Essex …
3. (US) The last car on a freight train, consisting of cooking and sleeping facilities for the crew; a guard’s van.

   Synonyms:

   guard's van

4. (childish, euphemistic, slang) The buttocks.
   • That's a pretty big caboose for a baby.2001 March 11, John Frink and Don Payne, Bye, Bye, Nerdie (The Simpsons), spoken by Homer Simpson
5. (slang) The person or team in last place.
6. (in-compounds, informal, often) A youngest child who is born after a long gap in time.
   • Jimmy was seven and had just finished first grade, so that made Nancy our caboose baby — our bonus child — our swan song.1987, Harriet Wallace Rose, Something's Wrong with My Child!