from The Lottery and Other Stories, by Shirley Jackson
That is a rough approximation of the "fake sleep"/"zzzzz" sound we used to make as kids when we were pretending to be asleep in such a way as to make it obvious that we were pretending-- or possibly to indicate a truly dire level of boredom, as in this instance.
I'm sorry, but it was a real snoozer.
I get it-- I can even identify and sympathize with the woman, though I'd never take it so far as pretending to be another person-- but still... snoozer.
...I don't know... I'm being harsh. But... conk-pew!