Its like goose bumps but on your derriere.
Cold water from the shower gave her caboose bumps
The act of contributing to a Tennessee Train Track, and getting stuck with the last position of the chain.
“How did your Thursday go last week?”
“Man, it was crazy, the only problem was that I was the Colorado Caboose of the train, now my teeth are all soggy.”
The brother of the girl you with.
Hey Hainer, is your brother the douche caboose coming with us?
The receiving end of a jtrain.
We went out and ran a jtrain on t-caboose last night.
A large headed sloth-like moving dog that should be the caboose on a train but, thinks they are the engineer which results in them being constantly in your way.
I would bring you your drink sir but, that damn moosh caboose is in the way again.
Relating to an end, usually to a string of objects or actions
"My last conversation with her felt pretty caboosive, I'm not sure if we will be dating for much longer."