Post-Dinner Dump. Highly necessary after an excellent meal. Helps clear out the digestive system to make way for the new food.
John: Honey that reception dinner was amazing! I ate way too much - I'm gonna go take a pdd.
Wife: Can't you just hold it in, for God's sake? (John: "THAT'S WHAT SHE SAID!!") Meet me at the car. Don't fall in.