when chickens have teeth

when chickens have teeth

At a time that will never come to pass. (Used to show skepticism or cynicism over some hypothetical situation.) A: "If we could just both political parties to agree on a tax reform bill, we could bring the deficit down in no time." B: "Sure, that will happen—when chickens have teeth!" I'm sure that David would be happy to pay for everyone—when chickens have teeth, that is.
See also: chicken, have, teeth
Farlex Dictionary of Idioms.
See also:
  • the thing is
  • the thing is...
  • agree to
  • the thing of it is
  • come down to the wire
  • be down to the wire
  • ((do) you) know what I mean
  • ((do) you) know what I'm saying
  • alarmist tactics
  • against the current