That argument is nothing to do with me.
be nothing to do with sb/sth
idiomto not be related to a person or thing in any way; you use this to say that something is not your business or responsibility.
Please stop asking about his personal finances, as that is nothing to do with you.
The manager insisted that the sudden change in policy was nothing to do with the recent budget cuts, though the staff remained skeptical.
Last updated April 22, 2026