when you set aside a day to drink from morning until evening. It is best used when a day of the week, such as a Wednesday is set aside, rather than the weekend.
"We should both take off this Tuesday and do a dayload!"
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.