a new one (on me)

a new one (on me)

Something I was not aware or informed of or knew nothing about until just now. A: "Yeah, Jeff and Anthony have been going out for a few months now." B: "That's a new one—I thought they were just friends." Having to pay for the water you use in your house is a new one to me—is that an American thing or something?
See also: new, one

new one on someone something

that one has not heard before and that one is not ready to believe. Bob's talk of poverty is a new one on me. He always seems to have plenty of money. The firm's difficulties are a new one on me. I thought that it was doing very well.
See also: new, on, one

a new one on (me, him, etc.)

an account, idea, or joke not previously encountered by me, him, etc. informal
See also: new, on, one

a ˌnew one on ˈme

a story, joke or piece of information that you have not heard before and which you may find difficult to believe: Butter that always stays soft — that’s a new one on me.No, I’ve never heard that story before. It’s a new one on me.
See also: new, on, one