english
1
general::
Phrase(s): (It’s) none of your business! It is nothing that you need to know. It is none of your concern. (Not very polite.) • Alice: How much does a little diamond like that cost? Mary: None of your business! • John: Do you want to go out with me Friday night? Mary: Sorry, I don’t think so. John: Well, what are you doing then? Mary: None of your business!
McGrawhill's American Idioms And Phrasal Verbs