be whistling in the dark

be whistling in the dark

To be sure of a particular outcome when all evidence points to the contrary. Based on the polls, he's whistling in the dark if he thinks he's going to unseat the incumbent. He never pays any attention to you, so you're whistling in the dark if you think he's really going to ask you out on a date.
See also: dark, whistle

be whistling in the dark

If someone is whistling in the dark, they are trying to make themselves feel less afraid. Then I waited, trying not to feel as if I were whistling in the dark, but I experienced no easing of my fear and anxiety.
See also: dark, whistle
References in periodicals archive ?
Like they know they could be whistling in the dark, but that such whistling is the only response they've got, and that they are not going to give up or let us sit there without so much as an accompanying tune.