(Verb): The Act of doing promiscuous things on Facebook OR The Act of commenting/posting on many peoples walls, pictures, status's, and other things on Facebook.
John:Wow! did you see all the comments Alison left on everyones wall.
A slutdookie is when a woman has a one night stand with someone and before leaving their house she leaves a massive wet shit in your toilet to remember her by
"oh my god, Amanda left a giant slutdookie in my toilet and it totally clogged it up."
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.