when you pull down your mates pants and start sucking on his penis. then you stick it in their asshole and start to spit on them. then y’all take a big poop on your mates chest. and make them put it all over you.
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.