Fags and hookers

Which is preferred?
She was fast asleep!
or
She was sound asleep!
We have divided opinions here and would appreciate any and all input.

I hadn't thought of this before but I think, "fast asleep" is that she's fully asleep.

"Sound asleep" implies she's in a deep sleep.

The difference if there is any is very slight so I'd think either way of saying it would do.

I haven't given it any thought until now either. I am not sure, but I think I probably use them very much interchangeably - no doubt I will now be shown to be unspeakably sloppy!

'fast' is used in the sense of 'tightly' or 'resolutely' (think 'fastened') - and 'sound' is being used in the sense of 'solid' or 'reliable' - there is not a fag-paper of difference between the usages when applied to sleep (IMO).
both are entirely acceptable meaning completely asleep.
I like 'comatose' myself.

zzzzzz.

What is the meaning and origin of that? It sounds derogatory.

Fag is Brit slang for cigarette... therefore "fagpaper" = "roll your own" cigarette paper - think Rizlas here. "Not a fagpaper of difference" = hardly any difference, since fagpaper is so thin.

Yes it's funny how terms evolve and change meaning completely. When I was young, fags were always cigarettes, but now I doubt anyone would dare to call them fags, given the term is now used in a derogative way to describe gay men. Another word that has made that transition in my memory is 'hooker'. When I was young 'hooker' was a rugby term and nothing else, but with American TV, that can be interpreted to mean a prostitute. Although it's still a Rugby term and hooker isn't really a word we use much here in reference to women on the game.

We have a large real estate chain here called L.J. Hooker Pty Ltd. Because they're real estate and big, they have big advertising signs all around. I remember an American friend who was visiting thought it was very amusing - and I had no idea why at the time.