poop and dash

The act of arriving at a location and immediately heading to the shitter and dropping a deuce whether small and dainty like that of a cat or large and gruesome like the dark lord satan himself is using your asshole as a portal into this world and then promptly leaving the premises never to return because what you did in that bathroom is probably against the Geneva Convention.

-"Wanna head over to that Kristen girl's house for that party?"
-"Can't bro. I totally did a poop and dash there last week."