Overthinking - the act of obsessively analyzing a situation, decision, or conversation to the point of creating unnecessary stress, self-doubt, or imaginary problems. Often leads to indecisiveness, anxiety, and wasted time.
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.