keep nose out of
keep one's nose out of something
Fig. to stay out of something, such as someone else's business. (See also keep one's nose out of someone's business.) Try to keep your nose out of stuff that doesn't concern you. Keep your nose out of my personal affairs.
keep your nose out of something
to not become involved in something The two men worked together well and kept their noses out of each other's personal affairs.
Usage notes: sometimes used in the form keep your nose out of it (do not get involved in something): I didn't ask for your help, so just keep your nose out of it.
keep your nose out of something(informal)
to not become involved in other people's activities or relationships What goes on between me and Pete is none of her business so she can keep her big nose out of it!