{Scupper hose} (Naut.), a pipe of leather, canvas, etc., attached to the mouth of the scuppers, on the outside of a vessel, to prevent the water from entering. --Totten. {Scupper nail} (Naut.), a nail with a very broad head, for securing the edge of the hose to the scupper. {Scupper plug} (Naut.), a plug to stop a scupper. --Totten.