Garbage grade weed usually sold by scum bags named Tommy who live in rich people neighborhoods who have a cop as their father. This weed will drive you crazy and is completely overpriced.
Sheldon: Should I cop off tommy after school?
Jerome: Hell nah nigga tommy got that dick pack and his dads an opp.
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.