The act of creating a fictional slang term or phrase which is never seriously used by anyone specifically for addition to Urban Dictionary. The word or phrase usually comes into actual use among a few isolated groups after being accepted to Urban Dictionary, which may or may not include the author and his friends.
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.