Whistling in the dark means you really don't know what's going on are trying to comfort yourself.
This means that you don't understand.
Whistling in the Dark - 1933 was released on: USA: 21 January 1933
It's not an idiom because you can figure it out. It's a sarcastic way of saying something is not clear - it's as dark as mud.
Animalia - 2007 Whistling in the Dark 1-20 is rated/received certificates of: Australia:G
Whistling in the Dark - 1933 is rated/received certificates of: USA:Passed (National Board of Review) USA:TV-G (TV rating)
Kraft Television Theatre - 1947 Whistling in the Dark 3-7 was released on: USA: 2 November 1949
Whistling in the Dark - 1941 is rated/received certificates of: Australia:G Finland:K-16 Italy:VM14 Sweden:15 USA:Passed (National Board of Review) USA:Approved (PCA #7550)
Whistling in the Dark - 1941 was released on: USA: 8 August 1941 UK: 8 December 1941 Sweden: 17 August 1942 Finland: 22 November 1942
Julie Andrews
It's not really an idiom. It means "what are you thinking about."
It is not an idiom, it means your nose is itching.
RFP is not an idiom. It's an abbreviation.