Butt screams 

when your butthole stings after an insanely large shit

Derp: Hi weirdo
weirdo: can't talk I HAVE BUTT SCREAMS

Butt screams by Gamerhaha November 8, 2017

Butt Scream 

A fart : "a flatus expelled through the butt hole"
Extreme Flatulence at an inconvenient time

Sarah, I have been butt screaming all afternoon we need to go to duane read and get some gasx

Did you hear that butt scream? it was like an 8 on the rectum scale

Butt Scream by CityScream October 29, 2011