A jewish person that can perform tasks that no one thought possible or can create something awesome out of seemingly normal objects by using his jewish powers.
Leroy: Dude there's no way you can bounce that pong ball off that lamp, over the couch, through that small pipe, off Becca's cleavage and into that cup for game.
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.