A catchall term for heartburn, acid reflux, ulcers, and other things where your stomach feels like it's digesting itself. Since for the most part, you take the same pills for them, there's rarely a need to differentiate in casual conversation.
"Oh man, I've got some killer gut rot, anyone got some Rolaids?" "Here, take a Zantac, it'll work better. And maybe you should stop working 80 hour weeks and eating garbage?"
by roxyhead August 24, 2011
Extreme intestinal disturbance associated with food-borne pathogens. Food poisoning not serious enough to require hospital treatment, but causing regular and horrific bouts of galloping diarrhea.
"Hi, this is Ben Hawley. Um, I won't be coming in today 'cause I've got the gutrot. So I'll... oh no..."
by shoggoth August 10, 2003
Pot Liquor, Shine, Moonshine, Hooch, Bootleg whiskey, Likker, alky, booze, Juice, Sauce, Eth, Ocean, XXX, stillwater, hard stuff, fire water, canned heat, White Jesus, spirits, smoke, red-eye, brew, slug, libation, shot, nipples, etc......
Dude, I gotta get off the gutrot before I shit my liver.
by Jaggo March 23, 2004