keep your nose out (of something)
From Longman Dictionary of Contemporary Englishkeep your nose out (of something)keep your nose out (of something)spokenINTERFERE# to avoid becoming involved in something that does not concern you I wish he’d keep his nose out of my business! → noseExamples from the Corpuskeep your nose out (of something)• Keep your nose out of my business!• You keep your nose out, you hear me?