radgy gadgy Share definition Flag Crazy bloke, usually found running and flailing down the street, shouting "You killed me ma". A disturbed radgy. They've put that radgy gadgy back in Cherry Nocka He was driving like a right radgy gadgy radgy gadgy by sheen25 September 15, 2003 0 0 Get merch Get the radgy gadgy mug. Buy Now — $32.95 See more merch