- to whistle down the wind
- to waste one's breath (idiom)
Generated: This phrase conveys the idea that one's words or efforts are as if they are being carried away by the wind, indicating they will not have any impact or recognition.
Generated: This idiom is used to describe a situation where someone puts effort into saying something but it is ignored or unheeded by others, rendering the effort pointless.
He yelled loudly at the sky, it was completely a waste of breath.