mad with it Share definition Flag Erratic behaviour, usually drunken or high behaviour. Used in the greater western Scotland, Glasgow and east Edinburgh mostly. Me and Stix went into Glasgow and got mad with it with a bottle of Bucky and a pound of crack. mad with it by LaToiya January 8, 2009 0 0 Get merch Get the mad with it mug. Buy Now — $32.95 See more merch