What’s it to you?
What's it to (one)?
What does one care? What business is it of one's? I pay my rent and my share of the bills—what's it to him how I spend my money otherwise? What's it to them what I do on the weekends? That's my time to do as I like! A: "Do you mind if I do yoga in the living room?" B: "Of course not! What's it to me?"
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
What’s it to you?
interrog. What does it matter to you?; Is it any of your business? So I broke my glasses. What’s it to you?
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.