the area behind the knee where, when bent, a cavity is created, in which, male excretions may be drank out of.
While I was vacationing in my grandparent's estate, I frequently sipped from my grandma's spirit pit, beofre she sipped from mine.
by Marvel September 25, 2003
A spirit pit is when you put your penis into a woman's armpit and then cum.
She looked at me wierd when I gave her a Spirit Pit.
by Joker X September 20, 2003