bigmouth

[big-mouth]

noun, plural big·mouths [big-mouth z, -mouths] /ˈbɪgˌmaʊðz, -ˌmaʊθs/ for 1; (especially collectively) big·mouth, (especially referring to two or more kinds or species) big·mouths for 2.

a loud, talkative person, especially one who lacks discretion.
any of several fishes having an unusually large mouth.

Nearby words

  1. bighorn,
  2. bighorn mountains,
  3. bight,
  4. bigleaf maple,
  5. bigly,
  6. bigmouth buffalofish,
  7. bigmouthed,
  8. bigness,
  9. bignonia,
  10. bignoniaceous

Origin of bigmouth

An Americanism dating back to 1885–90; big1 + mouth

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for big mouth

bigmouth

noun

slang a noisy, indiscreet, or boastful person
Derived Formsbig-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

Word Origin and History for big mouth

big mouth

n.

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

Online Etymology Dictionary, © 2010 Douglas Harper