Grecian bend

noun2

1. •
   (informal, no longer used) Among women, a posture once regarded affected,the upper body being inclined forward.

   • his hump was subdued into a Grecian bend, and his lack-lustre eyes seemed beaming with tenderness and admiration. — 1826
2. •
   (informal, no longer used) An exaggerated bustle (frame worn underneath a woman's skirt), the effect of which is generally assisted by high-heeled boots.