Cigarooper
This is when a smoker, usually a chain smoker, smokes a cigarette then proceeds to take a dump. The smoke smell is so overpowering that it carries into the bathroom via hair or clothes and mixes in with the poop aroma. There is usually a 15-30 minute window for the poop and smoke mixture to wear off after such a visit to the restroom.
Don't go in there, a cigarooper just left and the whole place smells like a stale bar restroom after a long night.