The fact that he owes 50,000 in student loans? That's ridiculous. The fact that he dropped out after one semester? That's ridonkulous. The fact that said 50,000 was spent entirely on Cheez-Its? That's ridonkadonk.
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.