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intr.v. tub-thumped, tub-thump·ing, tub-thumps Slang
To argue for or promote something vigorously: "is tub-thumping for a six-month limit on the legislative session" (David Nyhan).
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.
a noisy, violent, or ranting public speaker
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014