Anal Heave
Similar to vomit dry reaching, but from your arse when you've got diarrhoea.
When you've shat so much, that there's nothing left... But the contractions of diarrhoea keep going regardless.....that's moment of dry reaching from your rectum is an Anal Heave.
anal dry heaves
They're like the dry heaves for your ass.
That Taco Bell put me on the toilet for two solid hours. By the end of it, my system had been completely cleaned out and I had nothing but anal dry heaves.