The act of vacating the stall you currently occupy with your pants and underwear still around your ankles; in an attempt to occupy an adjacent stall that hopefully has toilet paper all whilst hoping to avoid other humans
I walked into the men's room and witnessed the most god awful dirty booty scooty, I guess there was no toilet paper in any of the stalls.
Similar to a Dirty Sanchez. It is when a man is doing a woman (or another man, egads) in the ass, and the woman contorts herself so as to reach around into the man's asshole, extract a poo finger, and wipe the finger clean on the
man's upper lip.
Rhonda didn't like the way her boss was ass-fucking her, so she reached around and gave him a dirty boota.