An activity in Cincinnati, practiced by locals, that involves slowing down or stopping when passing working firemen, policemen, paramedics, or other rescue personnel in the hopes of seeing what's going on and/or being entertained.
"We hung out by that house fire for like forty five minutes and we finally saw them carry a lady out of the second story. It was a great night for Cincinnati sightseeing."
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.