The act when a boss, or higher ranked, employer at a company shares a joke or funny tale at an attempt to amuse their workers when in reality said joke or tale is in fact dull and only amusing in the employers eyes. Commonly followed with a tag line: "you had to have been there". Mostly used by co-workers to point out bland senses of humor.
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.