Definition of "badmouth" [badmouth]

• Informal To criticize or disparage, often spitefully or unfairly: "those cross-Atlantic aficionados who persistently idolize the British theater and bad-mouth Broadway” ( Benedict Nightingale). (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "It's already been mentioned that all the other film studios and filmmakers badmouth each other for the prize anyway (surprise, surprise)."
• "It also not a place for a FAKE Reverend to badmouth people and to attempt to take their rights."
• "Now, I ain't no Yankee and I didn't badmouth Texas."