be all one to
it's all (the) one to me
It makes no difference to me one way or another; it's not important to me what happens. I don't really care what movie we see, it's all one to me. I'm not really a big sports fan, so it's all the one to me whether our team wins or loses.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
be all one tomake no difference to someone.
Farlex Partner Idioms Dictionary © Farlex 2017