Meaning
'Puss nuh business inna dawg fight' — a cat has no business in a dog fight, so stay out of quarrels that are not your own. The proverb warns that meddling in other people's disputes only gets you hurt for no gain, the way a cat that jumps into a fight between dogs is sure to be savaged. It is offered as shrewd, self-protecting advice: mind your own affairs, keep clear of trouble that has nothing to do with you, and let others settle their own rows.
Examples
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Nuh get inna dem argument; puss nuh business inna dawg fight.
Don't get into their argument; stay out of quarrels that aren't yours.
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It nuh concern yuh, so lowe it — puss nuh business inna dawg fight.
It doesn't concern you, so leave it — a cat has no place in a dog fight.
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Him butt in an get lick; puss nuh business inna dawg fight.
He butted in and got hit; mind quarrels that aren't your own.
Origin
An animal image: a cat wandering into a fight between dogs can only come off worse — a figure for meddling where you don't belong.
How it’s used
A caution against interfering in other people's disputes. Compare [[cockroach-nuh-business-inna-fowl-fight]].