Definition of overruff in English:

overruff

verb

[NO OBJECT]
  • (in bridge, whist, and similar card games) play a trump that is higher than one already played in the same trick.

    ‘there was a danger that West would be able to overruff’
    • ‘B plays his queen of spades and C not wanting to overruff with the 5 (a very high trump) plays his 5.’
    • ‘If West ruffs with his jack, dummy overruffs; if West ruffs with the ace, dummy discards.’
    • ‘Fine so far, as if South had ruffed low, East would have overruffed and returned a trump.’

noun

  • An act of overruffing.

    ‘when you see the chance of an easy overruff, don't be in too much of a hurry to take it’
    • ‘Accurate defense usually requires careful timing. Consider the alternatives before you routinely try for a ruff or an overruff.’
    • ‘He considered a crossruff, but there was a considerable danger that East would be able to score an overruff with the spade nine.’

Pronunciation:

overruff

/ˈəʊvərʌf/