Mind yuh business
Also spelled: Mine yuh bizniss, Mind yu business
Meaning
A sharp instruction to stop meddling in someone else's affairs; carries the same meaning as English 'mind your own business' but is more clipped and often delivered as a firm rebuke to a nosy person.
Examples
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“Weh dat have fi do wid yuh? Mind yuh business.”
What does that have to do with you? Mind your own business.
'Weh' means 'what' or 'where' depending on context; here it is 'what'.
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“Mi nah tell yuh nuttn, suh mind yuh business.”
I'm not telling you anything, so mind your own business.
'Nah' is the negative continuous, 'am not going to'.
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“Every likkle ting yuh waan know — mind yuh business, man.”
Every little thing you want to know — mind your own business, man.
'Likkle' is 'little'; 'man' is a general address particle, not gender-specific.
Origin
Directly from English 'mind your own business', shortened in everyday Patois speech by dropping 'own'.
How it's used
Blunt and dismissive; fine among peers but rude toward elders. The dropped 'own' distinguishes the Patois phrasing from standard English.