feeling good but in a bad way; stuck in a situation where you can't decide what to do..in the moment it would be "sweet" but the aftermath is down; deciding between two good things that have pros and cons.
After not do anything all day, you get an invitation at 12:15 to go to a party when you have class at 8:00am. You really want to get loose and have a good time...but with an 8:00am class, youre in a sticky situation.
This is a sweet down moment.
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.