be whistling in the wind

be whistling in the wind

To be talking about something that is unlikely to happen. Oh, he's just whistling in the wind—he'll never run for office.
See also: whistle, wind
Farlex Dictionary of Idioms.

be whistling in the wind

If someone is whistling in the wind, what they are saying is not realistic or will never happen. Until there is a dramatic improvement in employment prospects, these so-called experts on getting a job are just whistling in the wind. The government is whistling in the wind if it believes that it will achieve a lasting settlement.
See also: whistle, wind
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • go, run, etc. like the wind
  • like the wind, go/run
  • in the wind
  • be in the wind
  • get/have the wind up
  • have the wind up
  • run like the wind
  • blow in
  • blow in(to)
  • blow into
References in periodicals archive
They may be whistling in the wind, but organisers hope stopping all 1,850 residents from tooting will avoid bad weather by observing an old maritime myth.