Shit through a straw
A case of diarrhea, so violent and non-solid, that the subject could perform the above-mentioned.
"I drank a gallon of apple cider yesterday and was shitting through a straw for three hours this morning. Sweat was pouring off my forehead."
"You might not want to chow that #5 from Taco Bell, man. It might make you shit through a straw."
"You might not want to chow that #5 from Taco Bell, man. It might make you shit through a straw."