Cork,ireland word for 'wassup' or a general greeting. It came from the greeting 'what's the crack?' but 's'crak?' is just a shortened version i.e. you dont say the 'what' or the 'the' part!!...also see 'crack' because irish crack is not crack-cocaine!:)
1st person: 'Hiya!'
2nd person: 's'crack?'