The Hair of Knowledge

One long remaining pubic hair (approx. 3-4 inches long) on either male or more commonly found on female genitalia.

Either a remainder from one long bush wacking.
Or that one stubborn cock sucker that gets missed every shave or trim.

"Yo Jared, I just slept with Shauna Palmer, man it was crazy! when i was mucking her barn, i had to stop cause i thought i had a loose hair in my mouth. But nope, it was one long single pube... in my mouth." Said Sean

"Haha, no way! She had The Hair of Knowledge!" Said Jared