I am not sure if I get this right : "a secret prayer" means "she is a little fat so that she prays the zip could go up"?? (a little fat is a fact based in the novel). And I neither get the meaning of "a frugal generation" in the sentence, does it mean she does not have enough money when she made the dress?
Why is it a "result" dress??, the author put the " " on the word "result" to emphasize , but I have no idea at all what it looks like??
Here is the sentence:
……and instead put on my fourth option, a vintage dress in dark-red satin. It was made for a more frugal generation and I always had to say a secret prayer that the zip would make it up past my waist, but it gave me the outline of a 1950s starlet, and it was a ‘results’ dress, one of those outfits you couldn’t help but feel good in.
The context is :
The girl is going to a concert and she is trying on the fourth dress, and actually it turns out great on her later as the viewers approve her choice.