Laying the Scunion Share definition Flag Laying the Scunion can mean a multitude of things. The most general definition is as follows: To completely and utterly fuck shit up. Hey man, what are you doing tonight? I don't know man..... probably gonna be laying the scunion. Laying the Scunion by hey man325152 March 26, 2010 Get the Laying the Scunion mug.