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.
Origin of bigmouth
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for big mouthreprehensible, objectionable, disgusting, loathsome, abhorrent, rotten, unpleasant, hateful, nasty, annoying, abominable, awful, beastly, detestable, disagreeable, foul, gross, heel, insufferable, invidious
slang a noisy, indiscreet, or boastful person
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