To insult someome to their face, gossip about them behind their back, publish lies about them on facebook and then send their girlfriend an insulting message the next day.
"Dude, Graham totally Hannforded me last nite".
"He gave you a Hannaford? So I guess you too aren't friends anymore? That's a horrible thing to do to a friend. You gonna deck him?"
"No, I don't wanna lower myself to his standards."
"Good."
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.