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bigmouth

[big-mouth] /ˈbɪgˌmaʊθ/
noun, plural bigmouths
[big-mouth z, -mouths] /ˈbɪgˌmaʊðz, -ˌmaʊθs/ (Show IPA),
for 1; (especially collectively) bigmouth (especially referring to two or more kinds or species) bigmouths for 2.
1.
a loud, talkative person, especially one who lacks discretion.
2.
any of several fishes having an unusually large mouth.
Origin
1885-1890
1885-90, Americanism; big1 + mouth
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for big mouth

bigmouth

/ˈbɪɡˌmaʊθ/
noun
1.
(slang) a noisy, indiscreet, or boastful person
Derived Forms
big-mouthed, 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
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Word Origin and History for big mouth
n.

also bigmouth "person who talks too much," 1889, American English, from big + mouth (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for big mouth

bigmouth

noun
  1. A person who talks constantly and loudly
  2. A person who freely announces personal opinions and judgments; know-it-all, smart-ass
  3. A person who can't keep a secret (1880s+)
Related Terms

have a big mouth


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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