When you poop and puke at the same time.
"Ah, man. I shit guts today.
by Ugly Taxi March 02, 2013
1 more definition
The excess fat deposits in a man or woman's stomach; a gut. Negative connotation; often used insultingly.
Check out Jason Alexander's shitgut. It's terrible.
by ShitgutSal March 05, 2004