Someone who is seen as generic and one dimensional, with little depth or individuality to their character. Typically someone who strives to 'fit in' to be as popular as possible, often not being their true self. Can also simply mean someone who is seen as being a stereotypical character in any kind of way.
"My friend only watches Reality TV and makes fun of anything that isn't the current fashion........he's a real cardboard cutout c**t"
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.