I noticed this word being used at theregister.co.uk . I'm pretty sure it's another way of saying script kid, maybe it's a bit more derogatory.
"...the emergence of AirSnort, and soon another similar tool called WEPcrack (which is still in development), are certain to deskill the process of breaking into wireless networks and in so doing open them up to s'kiddiots everywhere." - theregister.co.uk
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.