calaboose/ˌkæləˈbuːs/EtymologyFrom Cajun French calabousse, from Spanish calabozo. Doublet of calabozo.calaboose means A prison or jail/gaol. Lexicurio rates it Sui generis — a strength score of 89 out of 100.nounA prison or jail/gaol.“The slaughter-house is gone from the mouth of Bear Creek and so is the small jail (or 'calaboose') which once stood in its neighborhood. A citizen asked, 'Do you remember when Jimmy Finn, the town drunkard, was burned to death in the calaboose?'”