D defs.my
Entry 1 sense Webster, 1913

Scupper

/skŭp'-ẽr/ · Scup·per · IPA /ˈskʌpɚ/
01 n. An opening cut through the waterway and bulwarks of a ship, so that water falling on deck may flow overboard; -- called also scupper hole.
  1. 1.
    An opening cut through the waterway and bulwarks of a ship, so that water falling on deck may flow overboard; -- called also scupper hole.(Naut.) Also: scupper hole
Phrases & compounds
Scupper hose — 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.
Scupper nail — a nail with a very broad head, for securing the edge of the hose to the scupper.
Scupper plug — a plug to stop a scupper.