poke your nose into something

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

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

poke your nose into something

or

stick your nose into something

INFORMAL
COMMON If someone pokes their nose into something or sticks their nose into it, they interfere in something that does not concern them. He has no right to go poking his nose into my affairs. I felt that they were sticking their noses into what was only my business. Compare with keep your nose out of something.
See also: nose, poke, something
Collins COBUILD Idioms Dictionary, 3rd ed.

poke/stick your nose in/into something

(informal) interfere in the affairs or business of other people: She’s always sticking her nose into other people’s affairs. It’s really annoying. What happens in this department does not concern him. Why does he have to poke his nose into everything all the time?
See also: nose, poke, something, stick
Farlex Partner Idioms Dictionary
See also:
  • poke (one's) nose in(to) (something)
  • poke nose in
  • poke one's nose into
  • poke your nose into
  • poke/stick your nose in/into something
  • thrust (one's) nose in(to) (something)
  • put (one's) nose (in) where it's not wanted
  • put (one's) nose in(to) (something)
  • put one’s nose in
  • put one’s nose in where it’s not wanted