just (you) watch

just (you) watch

You will see that what I have told you or predicted will turn out to be true eventually. I'm going to be a huge success some day, just you watch! Just watch, I bet Susan will walk through that door any minute now to apologize.
See also: just, watch
Farlex Dictionary of Idioms.

(You) (just) watch!

Inf. Just pay attention to what I do, and you will see that what I said is true! Rachel: I'll get her to change! You just watch! Andy: Good luck! Andy: You watch! You'll see I'm right. Sally: Sure, you are. Bob: Watch! This is the way it's done. Bill: You don't know what you're doing. Bob: Just watch!
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • watch!
  • Just (you) wait (and see)!
  • you wait
  • You wait!
  • you (just) wait (and see)
  • every dog will have its day
  • slam
  • be a slam dunk
  • dunk
  • who could have thought