Stick (one's) nose (in) where it's not wanted Verb + object/complement informal
To become involved in something that is not one's business or duty in an inquisitive manner.
Don't stick your nose where it isn't wanted, Min. I can manage on my own.
Reporters constantly took sneaky videos this couple's private life. They got angry and posted on Friday: "Why do newspapers have to stick their nose in where it’s not wanted?"
To interrupt something (usually a conversation or discussion).
If one horns in someone or something, he or she intrudes on someone or interferes in something in an annoying and unwanted way.
Used to indicate a person who likes to interfere or probe into the lives of others.
The verb "stick" should be conjugated according to its tense.