1. A small railroad car that was traditionally attached to the rear end of freight trains. It served several important functions, primarily providing a workspace and living
quarters for the train crew, including the conductor and brakemen. a caboose typically featured windows for crew members to observe the train's condition and surroundings. It also had a small kitchen, tiny office and beds. In addition, the caboose played a crucial role in train safety: the crew would use it to monitor the train's integrity (and signal to the engineer if something was wrong. With the advent of more advanced technology, such as
electronic monitoring systems and end-of-train devices, the use of cabooses has largely
disappeared in modern railroading.
2. An informal and humorous slang for the buttocks or rear end of a person.
See: Arse, Ass, Ass-Cheeks, Batty, Back End, Back Porch, Bam-Bam, Bamsee, Behind, Booty, Bootylicious, Bottom, Bum-Bum, Butt, Buttocks, Buns, Cheeks, Cushions, Culo, Derrière, Fanny,
Gluteus Maximus, Gluteal Region, Glutes, Heinie, Hips, Junk
in the Trunk, Keister, Love Cushions, Lower Back, Nates, Patootie, Peach, Prat, Posterior, Padded Area, Rass, Rears, Rear Bumper, Rear End, Rump, Rumpus, Rusty Dusty, Seat, Sitzfleisch, Soft Spot, Stern, Tail, Tailbone Region, Tochus, Tush, Tushie, Upper Cheeks.