When you have a sex train going and there are not enough people to make a full circle. The person in the rear is referred to as the loose caboose.
My swinging friends invited me over for a party. My girlfriend won't go. It is throwing off the numbers for the sex train. I hope I get to be the loose caboose rocking the train.
by StyxxxCA September 27, 2009

by getonit November 18, 2009

The feeling you get in your legs after having sexual intercourse. Can also apply to any other bodypart.
by birdmann34 May 26, 2012

by Ben Crocker April 20, 2005

1. A term in reference to one who is 'loose'; a whore, slut, harlot, prostitute, etc.
2. Having a large ass, so much so that it hangs off the side of a chair or bench.
2. Having a large ass, so much so that it hangs off the side of a chair or bench.
1. Man, Gina sure has a loose booty; she slept with that guy after only knowing him 5 minutes!
2. Man, see that chick's loose booty? It's hanging, like, 3 inches over that chair!
2. Man, see that chick's loose booty? It's hanging, like, 3 inches over that chair!
by peanut159 October 16, 2009

by Trigga Bone October 17, 2012

a big nasty slut who is so loose you can take a tour bus threw there and turn it around WITHOUT ANY PROBLEMS!!!
by looloo and booboo January 15, 2008
