don't you wish
You would like this to be the case. A: "Next year, I'm going to beat you for student council president." B: "Yeah, don't you wish!"
Don't you wish!
Don't you wish that what you have just said were really true? Mary: I'm going to get a job that lets me travel a lot. Sally: Don't you wish! Sally: Sorry you lost the chess game. It was close, but your opponent was top-notch. Bob: Next time, I'll do it! I'll win the next round. Sally: Don't you wish!