be none of (one's) business

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be none of (one's) business

To not be something that one needs to know or worry about; to be something private. It's really none of his business what I do with the money I earn.
See also: business, none, of
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

be none of somebody’s ˈbusiness


be no business of somebody’s

(informal) a person has no right to know something: ‘How much do you earn?’ ‘That’s none of your business.’It’s no business of yours who I go out with.
See also: business, none, of
Farlex Partner Idioms Dictionary © Farlex 2017
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References in periodicals archive ?
RE the letter 'Post Industrial Eyesore' (15.5.13), a friend sent me the newspaper clipping as I am not from your area and therefore one could say that the Kilton Mine Tip is none of my business but I do feel that your readers might like to read the opinion of a non local.