Dictionary.com

bigmouth

[ big-mouth ]
/ ˈbɪgˌmaʊθ /
Save This Word!

noun, plural big·mouths [big-mouthz, -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.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

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. 2023

How to use bigmouth in a sentence

British Dictionary definitions for bigmouth

bigmouth
/ (ˈbɪɡˌmaʊθ) /

noun
slang a noisy, indiscreet, or boastful person

Derived forms of bigmouth

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
FEEDBACK