A term coined by Andy Parry of the Line Traveling Circus to describe the unpredictable or imperfect skiing conditions of the east coast of America. Also can be used to describe other extreme sports like longboarding/skateboarding or surfing.
Andy Parry - "It's not powder, it's not steep and deep, it's not Alta man, it's like east coast hardcore real stuff... ...man."
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.