Meaning
A blabbermouth — someone who talks too much and cannot keep a secret, blurting out other people's business to anyone who will listen. It also names loose, careless talk itself. Built from 'blabber' and 'mout' (mouth), the word condemns the leaky, indiscreet tongue that betrays confidences and spreads news it should hold, and it sits with 'chatty-chatty' in the vocabulary of the gossip and the tell-tale, a real fault in a culture that prizes discretion.
Examples
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Nuh tell she nutten, she a pure blabba mout.
Don't tell her anything, she's a real blabbermouth.
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Him blabba mout mek di whole community know.
His big mouth let the whole community know.
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Keep it quiet — mi nuh want no blabba mout spread it.
Keep it quiet — I don't want any gossip spreading it around.
Origin
From 'blabber' (to talk foolishly and indiscreetly) plus 'mout' (mouth) — one whose mouth blabs everything.
How it’s used
A term for a person who can't keep secrets, or for indiscreet talk.