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noun

bigmouth

noun
1
Someone who talks too much or blurts out things that should have been kept private.
"Don't tell Dave the news — he's a total bigmouth."
"She got a reputation as the office bigmouth after leaking the merger plans."
adj
1
Describing an animal or fish with an unusually large mouth.
"The bigmouth bass is a popular target for anglers."

How to Use Bigmouth

Learner’s notes

In plain EnglishA person who talks too much, especially about things that should stay secret.

When to use it

Informal — fine in casual speech, but avoid it in formal writing.

Common pairings
a total bigmouth bigmouth bass

Word Forms

bigmouths plural

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Don't tell Dave the news — he's a total _____.

Etymology

A straightforward combination of big and mouth, used since the 19th century for someone who can't keep quiet.

Rhymes for bigmouth

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Definitions: FreeDict original editorial