This is very, very struggling for me to imagine: why " there is fat on a hairpin"??? I could get that the dress is too small and tight, and maybe the person is a little fat(depends on how you see it, not to me), but why fat on a pin? HELP please.
Here is the sentence :
The embarrassing thing was not that I was wearing my mother’s suit, or that it was in a cut last fashionable in the late 1980s, but that it was actually a tiny bit small for me. I felt the waistband cutting into my midriff, and pulled the double-breasted jacket across. As Dad says of Mum, there’s more fat on a kirby grip.