1. A cake smaller than a cupcake. A mini-cake. One that is unable to provide for a family of four, as well as their illegitimate children.
2. Another description of two African-American individuals fornicating, thereby producing a stacked "cake", of sorts.
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.