Stick (one's) nose in(to) (something) verb phrase
To involve oneself into something that is none of one's business or responsiblity
He's a hot-tempered person. You'd better not stick your nose into their business.
I find that my neighbors are interested in sticking their noses into our family's affairs.
Don't stick your nose into our affairs.
To interfere somebosy's plan or bussiness
Not working properly
To disrupt someone's plan.
To interrupt something (usually a conversation or discussion).
To take someone's attention away from, or interfere with what they are doing, so that they are unable to do it well
The verb "stick" should be conjugated according to its tense.