noun, plural loud·mouths [loud-mouth z, -mouths] /ˈlaʊdˌmaʊðz, -ˌmaʊθs/.

a loudmouthed person.

Origin of loudmouth

First recorded in 1660–70; loud + mouth
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for loudmouth

Contemporary Examples of loudmouth

  • Being a loudmouth, camera-loving, wise-cracking New York Jew who made Chuck Schumer appear debonair was a good start.

    The Daily Beast logo
    Weiner’s Well-Timed Rehab

    Eric Alterman

    June 12, 2011

  • It's small, and lewd, and drinky--and the loudmouth guy from math class is up at the podium.

    The Daily Beast logo
    Best of the Golden Globes

    Choire Sicha

    January 17, 2010

  • Benjamin Sarlin on Alan Grayson—yes, that loudmouth on health care—the freshman congressman who's leading the charge.

    The Daily Beast logo
    The Anti-War Left's Big Gun

    Benjamin Sarlin

    October 15, 2009

British Dictionary definitions for loudmouth


noun informal

a person who brags or talks too loudly
a person who is gossipy or tactless
Derived Formsloudmouthed (ˈlaʊdˌmaʊðd, -ˌmaʊθt), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for loudmouth

also loud-mouth, "loud or talkative person," 1872, from loud (adj.) + mouth (n.).

Online Etymology Dictionary, © 2010 Douglas Harper