what is the meaning of "so the hell what"

Hi,
I want to learn what it means to say "so the **** what" in daily speech.
Could you help by explain it please?
I haven''t heard this expression. I wonder if you mean 'So, what the ****'?
Here are a couple of examples of use.

'You are very late. So, what the **** have you been doing?' 'The ****' just adds emphasis to the question 'What have you been doin

Dear Clive,

Thank you very much for your answer to my question. I had read this idiom in an article. It was used as below:

Police are happy to point out: “The suspect tested positive for GSR and this proves he shot the victim.” To the first part I respond: “So the **** what?” To the second part: “Maybe!”

I couldn't understand what it means to say “So the **** what?” in t

I think it's just a random insertion of an expletive into something for emphasis -- a common example of this would be "Why the **** not?" or "Who the **** knows?" But "so the **** what" sounds very odd, maybe because "so what the ****" is a much more common expresssion and it just sounds like a grabled version of that.

This reminds me of scenes in "Star Trek: the Voyage Home", in which