A man in his mid 20s who is a self described geek, web developer, and considers himself "25% asshole, 75% nice guy". He also goes by names like Dude, TDude53, etc., and is the creator of a chatbot named DudeBot.
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.