from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. Games To overtrump.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To ruff with a higher trump following a prior ruff on the same trick
- n. An act of overruffing
East can overruff or discard, but his queen of trumps wins the defenders 'only trick.
Whichever red suit he led from the table, West could overruff if South ruffed low, or discard if South ruffed with the ace or the king.
Otherwise you would ruff the diamond with the seven and East would overruff with the eight to cash his heart, and you would have ♠ AJ remaining over South's ♠ K10.
When Louie ruffs the next spade, West can overruff and lead a club, but Louie wins in his hand, takes the A-K of trumps and ruffs a diamond.
I could think of one reason only: the fear that the Walrus could not overruff dummy, and would thereby give vital information to declarer.
South had to overruff with the ace, and now West had to score the setting trick with his nine-six of spades behind declarer's ten-eight.
The kibitzers were suitably impressed when The Visitor, rather than overruff, discarded a diamond.
Having no more himself, declarer will ruff with the jack or the six, maybe, and whatever it is your poor partner won’t be able to overruff.