The act of conducting business online with the realisation that your old products have value and likely loss aversion. The product holder therefore increases their revenue to repurchase a new product whilst selling back their old ones.
During the recession smart consumers, 'trade in' to continue buying new.
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.