The dreaded feeling of intense pain and heat in your asshole, most commonly occurring when, but not limited to, eating hot wings. It gets so bad that you are conflicted as to whether you should push it all out or hold it in out of fear. Its the worst and most unsatisfying dump anyone can have.
"yo dick, you wanna go out tonight?"
"I dont think so dude, Im shitting hot wings, so my world is coming to an end."
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.