To shit and piss your pants while attempting to fart.
Jeremiah, being the jokester he was, attempted to leave a silent but deadly fart for his friends to delight in, but only succeeded in pisharting himself. Looks like the joke was on poor jeremiah!
The trifecta of bodily waste functions. Best applied in a seated position. Particularly dangerous, messy and embarrassing for males standing at urinals.
Golly, Ralph, I was at the ball game and had to go so bad, I had to pishart in my shorts while standing in the bathroomline.
A trip to a grocery store, convenience store, or gas station for the sole purpose of buying an excessive amount of junk food and sugary drinks, usually with friends. A chud run often happens late at night and ends with everyone involved hating themselves afterwards.