[skuhp-er] 
| 1. | Nautical. a drain at the edge of a deck exposed to the weather, for allowing accumulated water to drain away into the sea or into the bilges. Compare freeing port. |
| 2. | a drain, closed by one or two flaps, for allowing water from the sprinkler system of a factory or the like to run off a floor of the building to the exterior. |
| 3. | any opening in the side of a building, as in a parapet, for draining off rain water. |
[skuhp-er] | 1. | Military. to overwhelm; surprise and destroy, disable, or massacre. |
| 2. | Informal. to prevent from happening or succeeding; ruin; wreck. |
| scup·per 1 (skŭp'ər) n.
[Middle English scoper- (in scopernail, nail for attaching scupper-leathers to a ship), probably from scopen, to scoop, from scope, a scoop; see scoop.] |
| scup·per 2 (skŭp'ər) tr.v. scup·pered, scup·per·ing, scup·pers
[Perhaps from scupper1.] |