underruff

verb, noun — 2 senses

verb

Etymology From under- + ruff.

Bridge, Games To ruff with a trump lower than the trump already played by one's opponent

And so, at trick five, when South ruffed a diamond with the board's queen of clubs, East, having a discard to make, found a gorgeous one— he underruffed with seven of trumps!1973, Fred L. Karpin, The Art of Card Reading at Bridge, →ISBN, page 149:

noun

Etymology From under- + ruff.

An act of underruffing

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.