Mind your own business means to focus on your own concerns and not interfere in other people's matters. This idiom is used when someone is being too curious or involved in something that does not concern them.
The phrase has been used in English for centuries as a straightforward way of telling someone to stop asking questions or giving opinions about someone else's affairs.
The phrase has been used in English for centuries as a straightforward way of telling someone to stop asking questions or giving opinions about someone else's affairs.
When he started asking about their private plans, she told him to mind your own business.