When a group of people all have a huge connection (anywhere from strong relationships to a literal hive mind) and they all have such bad depression that they all hang themselves at the same time. Can be used with multiple nooses, or just one for many people
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.