Definition of cabooses:
(n) :
(US, rail transport) The last car on a freight train, consisting of cooking and sleeping facilities for the crew; a guard’s van.
(n) :
(slang, childish, euphemistic) The buttocks.
(n) :
(slang, sports) The person or team in last place.
(n) :
(informal, often in combination) A youngest child who is born after a long gap in time.
(n) :
(obsolete, nautical) A small galley or cookhouse on the deck of a small vessel.
(n) :
(historical, nautical) A small sand-filled container used as an oven on board ship.