Tattered Clam
When a pussy has been used to the point where the outer lips become dry and darkened; appearing very similar to the edges of a steamed clam. They will feel dry to the touch and may become an issue if lubricant is not applied. Also note that when separated the smell can be very similar to that of a slightly rotten clam.
I reached down her pants to check things out and to my dismay I found a dried up old tattered clam.