Octopus Vagina is a character in Panty & Stocking with Garterbelt. It is ghost #21 and the main antagonist of the second comic.
Octopus Vagina's lower body has an octopus' vagina, hence its name. In the comic, it eats a lot of men. Panty decides to have a sex duel with the ghost. She wins the duel, causing Octopus Vagina to die.