mind your own business | meaning of mind your own business in Longman Dictionary of Contemporary English | LDOCE

From Longman Dictionary of Contemporary Englishmind your own businessmind your own businessINTERFERE informal to not ask questions about a situation that does not involve you  Why don’t you just mind your own business and leave me in peace?  I wish he’d mind his own business. → mindExamples from the Corpusmind your own business• I wish you'd stop interfering and mind your own business.• He also fired his lawyer and told civil libertarians to mind their own business.• His life had been well-ordered and reasonably happy, he thought, by minding his own business.• I asked her if he'd returned home and she told me to mind my own business.• She hoped he didn't interpret them as telling him to mind his own business.• Then I felt a fool and decided to leave it and mind my own business.• He had not minded his own business as a man of seventy in New York should do.• Folks in Montana tend to value their privacy, to the point that minding your own business is considered a virtue.• I was minding my own business, sleeping, when I heard something.