Maybe mistaking “hot to trot” with Hottentot??
In 1918 there was a large number of young men returning from a distinctly unpleasant experience, the minority of them had officers gratuities, and they were well used to brothels - in Paris and further afield.
As supply adapts to demand, females adapted to requirements, they wore short bead dresses or the more modest ones, just flaps, appeared to enjoy dances like the ‘black bottom’ (?) and were pretty available.
They were called ‘flappers’
Basically ex soldiers are not very interested in crinoline