An act which involves a train of guys separating the butt cheeks of a woman and taking a dump inside. Possibly having sex with it? That would turn it into a "Rusty Nail" or a "Dirty Piston", which ever name you choose. You would be a fool not to.
by jpop1000 October 24, 2014
by Lets.start.a.riot March 15, 2023
When family members are engaged in group sex with another family member and something happens (superficial or catastrophic) to bring it to an early or unexpected end.
We was all banging cousin Shirley out back at the family reunion when uncle Bubba's liquor still blew up and started an Alabama train derailment almost instantly.
by Gliterbob the Clown March 10, 2023
by Mike Oxlong the 3rd August 21, 2022
A Vroom Vroom Train is a very good friend to have. Vroom Vroom Train is very funny, kind, smart, and friendly. Do not be afraid to approach Vroom Vroom Train. If someone hurts you, Vroom Vroom Train will be there to save you and destroy whoever upset you. Get a friend like Vroom Vroom Train.
by The Vroom Vroom Train May 22, 2023
by Andybhoy1995163 July 19, 2011
When one partner fucks their partners mouth, while letting a turd slip out on to their significant others chest, allowing it to slide down their torso.
by LaneMikey April 15, 2018