blabbermouth
noun
blab·ber·mouth
ˈbla-bər-ˌmau̇th 
: a person who talks too much
especially
: tattletale
Examples of blabbermouth in a Sentence
told the blabbermouth to put a lid on it
Recent Examples on the Web
There’s a new MCU blabbermouth in town.
—
Bethy Squires, Vulture, 10 Aug. 2025
Hsu had no problem playing an out-and-out villain for long stretches of that film, but her Ruby is more of an oblivious blabbermouth prone to shocking bouts of callousness, like failing to remember the names of people she’s inadvertently condemned to die.
—Alison Herman, Variety, 19 Dec. 2024
They’re portrayed as gullible blabbermouths who spill everything the minute anyone shows public kindness.
—David Fear, Rolling Stone, 5 Aug. 2024
Professional blabbermouth: that’s what most of these journalism degrees are really leading toward.
—Hazlitt, 7 Feb. 2024
The new footage seemingly leaked online on TikTok on Sunday — for once, notorious blabbermouth Holland wasn't to blame — but the official trailer still had more than a few surprises, including the return of Alfred Molina's Doctor Octopus and Willem Dafoe's Green Goblin.
—Devan Coggan, EW.com, 24 Aug. 2021
George Soros, a demon to many right-wing blabbermouths, must be one of the most misunderstood men on the contemporary scene.
—Stephen Farber, The Hollywood Reporter, 6 Sep. 2019
The leaks are coming from the disgruntled staff in the White House and the president himself, who is a blabbermouth.
—Chicago Tribune, chicagotribune.com, 28 May 2017
So Trump’s blabbermouth will likely chill our relationship with that third party and shut off that and other valuable sources of information.
—Leonard Pitts Jr, The Mercury News, 17 May 2017
Examples are automatically compiled from online sources to
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Bethy Squires, Vulture, 10 Aug. 2025
Hsu had no problem playing an out-and-out villain for long stretches of that film, but her Ruby is more of an oblivious blabbermouth prone to shocking bouts of callousness, like failing to remember the names of people she’s inadvertently condemned to die.
—Alison Herman, Variety, 19 Dec. 2024
They’re portrayed as gullible blabbermouths who spill everything the minute anyone shows public kindness.
—David Fear, Rolling Stone, 5 Aug. 2024
Professional blabbermouth: that’s what most of these journalism degrees are really leading toward.
—Hazlitt, 7 Feb. 2024
The new footage seemingly leaked online on TikTok on Sunday — for once, notorious blabbermouth Holland wasn't to blame — but the official trailer still had more than a few surprises, including the return of Alfred Molina's Doctor Octopus and Willem Dafoe's Green Goblin.
—Devan Coggan, EW.com, 24 Aug. 2021
George Soros, a demon to many right-wing blabbermouths, must be one of the most misunderstood men on the contemporary scene.
—Stephen Farber, The Hollywood Reporter, 6 Sep. 2019
The leaks are coming from the disgruntled staff in the White House and the president himself, who is a blabbermouth.
—Chicago Tribune, chicagotribune.com, 28 May 2017
So Trump’s blabbermouth will likely chill our relationship with that third party and shut off that and other valuable sources of information.
—Leonard Pitts Jr, The Mercury News, 17 May 2017
Cite this Entry
“Blabbermouth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blabbermouth. Accessed 31 Oct. 2025.
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blabbermouth
noun
blab·ber·mouth
ˈblab-ər-ˌmau̇th
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Merriam-Webster unabridged
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