stupid retard Share definition Flag Calling a retard stupid, making them sound even more retarded. Closely related to the term: dumb idiot A: "My helmet is blue." B: "No, your helmet is green, you stupid retard." stupid retard by Mrbiginpants January 18, 2009 0 0 Get merch Get the stupid retard mug. Buy Now — $32.95 See more merch