The last car on a freight train, having kitchen and sleeping facilities for the train crew.
Obsolete
A ship's galley.
Any of various cast-iron cooking ranges used in such galleys during the early 19th century.
An outdoor oven or fireplace.
[Possibly from obsolete Dutch cabuse, ship's galley, from Middle Low German kabūse : perhaps *kab-, cabin; akin to Old French cabane; see cabin + Middle High German hūs, house.]
n. the buttocks. (From the name of the car at the end of a railroad train.) : You just plunk your caboose over there on the settee and listen up to what I have to tell you.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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Word Origin & History
caboose
1747, from M.Du. kambuis "ship's galley," from Low Ger. kabhuse "wooden cabin on ship's deck." Railroading sense is 1861.