This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Nautical An opening in the side of a ship at deck level to allow water to run off.

n. An opening for draining off water, as from a floor or the roof of a building.

v. Chiefly British To overwhelm or massacre.

v. To ruin or destroy: "The world oil glut combined with disastrous federal energy policies to scupper Alberta's economy” ( Christian Science Monitor).

n. A drainage hole on the deck of a ship.

n. A similar opening in a wall or parapet that allows water to drain from a roof.

v. Thwart or destroy, especially something belonging or pertaining to another; compare scuttle.

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.

n. Nautical, an opening in the side of a ship at the level of the deck, or slanting from it, to allow water to run off; also, the gutter or channel surrounding the deck, and leading to such openings: often in the plural.

n. drain that allows water on the deck of a vessel to flow overboard

v. wait in hiding to attack

v. put in a dangerous, disadvantageous, or difficult position

"Race one between Alinghi and Damiani Italia saw Damiani win the first start and lead upwind only to have a erroneous 'over the line' call scupper the race which was re-started 20 minutes later."

scuppered    scuppering    scuppers   

waste pipe    drain    drainpipe    wait   

scupper hole   

Tupper    supper    upper   

autogenous    RDA    satin-lined    supermassive    facecloth    handstitched    hair-thin    punch-down    Ltd.    exothermic