undertrump(redirected from undertrumps)
intr.v. un·der·trumped, un·der·trump·ing, un·der·trumps
To play a trump lower than another card player's trump when trump has not been led.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Card Games) (intr) cards to play a lower trump on a trick to which a higher trump has already been played
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Past participle: undertrumped
Collins English Verb Tables © HarperCollins Publishers 2011