A snob party. A gathering of duche nozzles. A party where all the people are trying to show up each other through their clothes, cars, their money, and their education attainment. A very boring party full of uninteresting people.
Sam: "Did you go to Charlton's party last night?"
Will: "Yeah, but everybody there was a total snob, just like Charlton.
Sam: "Total duche-atopia, right? I told you not to go."
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.