What is Newsflash: I Don't Care?
1.
A moderately unkind smart-ass thing to say to someone who says something that doesn't matter. Most people who say this are either in a bad mood, not a nice person altogether, or don't like the person they're talking to. It's not very clever, but alot of people thing it is.
Bill: Hey my cat threw up today.
Joe: Newsflash: I don't care!