definitions

bigmouth

[ big-mouth ]
/ ˈbɪgˌmaʊθ /
SEE MORE SYNONYMS FOR bigmouth ON THESAURUS.COM

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.

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RELATED WORDS

reprehensible, objectionable, disgusting, loathsome, abhorrent, rotten, unpleasant, hateful, nasty, annoying, abominable, awful, beastly, detestable, disagreeable, foul, gross, heel, insufferable, invidious

Nearby words

bighorn, bighorn mountains, bight, bigleaf maple, bigly, bigmouth, bigmouth buffalofish, bigmouthed, bigness, bignonia, 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

/ (ˈbɪɡˌmaʊθ) /

noun

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