scupper : Idioms & Phrases
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.
Webster 1913
Scupper nail
(Naut.) , a nail with a very broad head, for securing the edge of the hose to the scupper.
Webster 1913
Scupper plug
(Naut.) , a plug to stop a scupper. Totten.