Definitions by XD_PINKBUNNY_XD

HBB ratio 

Harry's Boob to Butt ratio

A girl cannot have massive boobs and a small butt, but they also can't have small boobs and a massive butt. So test them on the HBB ratio. It gets amazing results (Y)

HBB ratio by XD_PINKBUNNY_XD January 18, 2012