A woman of loose morals, even looser genitals. When a woman loses vaginal tightness and grip, she must resort to extreme measures by doing the obvious, tying up her bits to appear Like A Virgin for every encounter with every Tom Dick and Harry...or Tom, whose dick is hairy.
Your granny's been around the block. My grandpa told me that she had a drawstring pussy before she was 21...he had her back in 1945.
It's really difficult curing a yeast infection when you got a drawstring pussy; it's quite messy and hard to deal with.