A large and intense bowel movement that results in the evacuation of all 27 ft of your intestines. Code-27 usually involves three distinct types of feces; the plug (hard feces), the hind shit (wet and sloppy feces resembling a cow pie), followed by the giblets (soupy stomach acid with a few particulates).
That pepperoni pizza last night caused me to have a Code-27 in the middle of the night.
I won't be crapping today. I had a Code-27 yesterday that cleaned me out.