I don't know J.A. Prufrock but the other 3 are famous for constantly blowing hot air.
"full of hot air (comparative more full of hot air, superlative most full of hot air) (idiomatic) Talking a lot, especially without saying anything of value or meaning"
Anyone interested in knowing more about "extras", "mileage", "menu" and "takeouts" in SC's can do a search in the SC Forum. Here below is just one example. (Or, better still go to one of the Trinity Clubs.)
"Immediately got the high pressure for extras. My buddy was in another lap dance booth just down the way from me, and it was super dark in there. Unable to see the other booth at all. My dancer wanted me to get the full package but I only wanted a handy. Which she was agreeable about for $100, after laughing fairly loudly about calling it a handy, and the experience was quite good. When I returned to the table, my buddy was not back yet. About 20 minutes later he stumbles back. And he explains that the price was "what have you got in your wallet?" Now he isn't a newbie to the strip club experience. So I had no sympathy for him in that he answered this question honestly and accurately. But for it he got full service."