When an ugly girl who has been a victim of the game ‘pull a pig’, shits in the bed then quietly leaves...........
After winning a game of pull a pig, Richard also won ‘pork then beans’ when he awoke to find that he had been rolling around in the shit she left behind!
Another way of saying that you or someone is holding in diarrhea because there are no bathrooms available or nearby. (The beans part coming from the fact that diarrhea kinda looks like beans)
Ex1. Hurry up in there! I’ve been holding the beans for too long!
Ex2. Poor Ben. He’s been holding the beans for a while now.