When you are taking a shit and it is alternating quickly from runny shit-farts-solid shit making a sound similar to a machine gun shooting into water.
"The chili I ate last evening gave me the worst machine gun shits this morning."
by FRANEIGH September 6, 2006
Get the machine gun shits mug.
When you start shitting out turd after turd and it sounds like a machine gun.
Dude, kyle said he had the machine gun shits after he had mexican food last night.
by IM THE ASS MAN! July 10, 2016
Get the machine gun shits mug.