The intense and sudden release of bowel movements; creating an explosive (sometimes messy) bowl of poop. Soupy Poopie often comes unexpected, thus creating a sticky situation. Several causes of this common and unpleasant bodily function are; excessive drinking, bad Mexican food or "water", certain allergies and the extreme use of chewing gum. This catastrophic event on the body is like a fire drill for your "waste management team".

What happens when he “forgot to pull out.”

Diarrhea that has some chunks but not a lot and mostly just liquid poo.

When you spill soup on your pants and are too lazy to clean it up because by the time you clean it up your soup will be lukewarm. Thus you have soup on your pants.

Is the result of Anal Leakage. When one experiances "Soupy Booty", it is usually a result of bad diet, or sickness, or just plain to old to digest food properly.

those who wear their pants low and have no ass

When someone takes a shit in your bowl of soup