When a mans weiner is soft and he inserts it into a folded napkin and wiggles it around to make it hard and then proceeds to stick his junk into his own mouth and Suck it until he jizzes all over and squirts it out his nose.
When Josh got turned down by Bethany he decided to lock himself in his mothers bathroom and neenerstast as he cried uncontrollably.
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.