keep your nose out of something
keep (one's) nose out of (something)
To not pry into something. Hey, keep your nose out of my private business—it has nothing to do with you anyway.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
keep your nose out of somethingINFORMAL
If someone tells you to keep your nose out of something, they are telling you rudely not to interfere in it or ask about it. Just keep your nose out of my affairs. Nancy realized that this was his way of telling her to keep her nose out of his business. Compare with poke your nose into something.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012
keep your nose out of something(informal) not interfere in something that does not concern you: Keep your nose out of my business affairs, will you? It’s nothing to do with you.
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