- a loudmouthed person.
Origin of loudmouth
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a person who brags or talks too loudly
- a person who is gossipy or tactless
Word Origin and History for loud mouth
Online Etymology Dictionary, © 2010 Douglas Harper
Idioms and Phrases with loud mouth
see big mouth.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.