Someone that has been doing cocaine asks to use your bathroom, and takes a nasty "coke shit" that leaves splatters or skid marks that never come off the toilet.
Also known as CBS.
This is where your diarrhea is so bad that you can shit into those old glass 16oz Coke bottles with the narrow opening without touching the side of the bottle.
That's the last time I eat at Taco Bell. I had a bad case of the coke bottle shits all week! That stupid Chihuahua can go fuck itself.