Does Dolly Parton Sleep On Her Back? Edit Meaning

1.

obviously, of course, definitely yes, are you fucking kidding me?

The expression - used sarcastically to answer a rhetorical question - refers to the lovely American singer and actress, whose huge breasts probably lead her to lie down on her back to sleep.

I found my lucky pair of shoes when I was offered a job to do a TV report on shoe fashions. I was a television correspondent and was asked to review the new shoe styles at all the sleek and swanky boutiques around Manhattan. Would I be interested? Does Dolly Parton sleep on her back?