2. A term of endearment meaning that the person you are with will be the last one ever just as a caboose at the end of a train. Putting baby and caboose together to form baboose.
by Icarium November 28, 2013
Strong tall blonde strapping young lad typically very sex driven. Also refers to a younger boyfriend who is part baby and part papoose. The object of lust for a female pedophile.
by Tim Sweater June 06, 2009