The patch of skin between a woman's rectum and her vagina. During cunnilingus, it prevents a man from getting shit in his beard or gotee. Additionally, this little beaver dam helps prevent peanuts and pecans from crossing over into her vaginal canal. Either of which could seriously injur the male penis during intercourse.
It is no coincidence that its size is proportional to the distance between an adult males' index finger and his thumb.
This bodypart is often known as a taint
I aimed a little low and slammed my soldier into her pussassy. It's been crooked ever since.