the annoying habit that some people have of allowing wikipedia to permeate every facet of their life to the extent that they must draw a connection to wikipedia in every possible situation, appropriate or not.
<Toothpaste> You should check Wikipedia for that, it has great make-up tips.
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.