When a shit is exceptionally wide and hard, and it results in excruciating pain and a tearing sensation of the butt hole. This is usually followed by a soreness of the butt hole and in extreme cases can prevent a person from sitting down.
My wife was complaining about how painful child birth was, well, she doesn't know the least of it. Her kid was 8 pounds, I'v dropped 10 or 12 pound soreblers in my day, and that is out my ass. I couldn't sit down for a week and she's the one who is complaining.