Meaning
Something sensational that everybody talks about intensely for a short while and then forgets — a scandal, a piece of news, a big drama that burns hot and dies fast. The Jamaican saying 'news caan run more dan nine day' captures the wisdom that no gossip or trouble stays the centre of attention for long. To call a fuss a nine-day wonder is to predict, or comfort yourself, that it will soon blow over.
Examples
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Nuh badda bout dat, a nine-day wonder.
Don't worry about that; it's a nine-day wonder.
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Di scandal done dead already, nine-day wonder.
The scandal has died down already, a nine-day wonder.
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News caan run more dan nine day.
News can't last more than nine days.
Origin
From the English/proverbial 'nine days' wonder', well-rooted in Jamaican saying. See [[labrish]], [[bad-mind]].
How it’s used
A sensation that's talked about briefly then forgotten. See [[labrish]], [[dry-weather-friend]].