stick one’s nose in

stick (one's) nose (in) where it's not wanted

To involve oneself in an intrusive or nosy manner in something that is not one's business or responsibility. I wish my neighbors would quit sticking their noses in where they're not wanted and just leave us alone! Don't stick your nose where it isn't wanted, Jim—your brother can manage well enough on his own.
See also: nose, not, stick, want

stick (one's) nose in(to) (something)

To involve oneself in an intrusive or nosy manner into something that is not one's business or responsibility. I wish my neighbors would quit sticking their noses in and just leave us alone! Liam, don't stick your nose into your brother's affairs—he can manage well enough on his own.
See also: nose, stick
Farlex Dictionary of Idioms.

stick one’s nose in

verb
See put one’s nose in where it’s not wanted
See also: nose, stick
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • stick (one's) nose (in) where it's not wanted
  • stick (one's) nose in(to) (something)
  • stick nose in
  • stick one’s nose in where it’s not wanted
  • put (one's) nose (in) where it's not wanted
  • put (one's) nose in(to) (something)
  • put nose in
  • put one’s nose in
  • put one’s nose in where it’s not wanted
  • poke your nose into something