Yamauba (山姥 or 山うば), Yamamba or Yamanba are variations on the name of a yōkai found in Japanese folklore.
Depending on the text and translator, the Yamauba appears as a monstrous crone, “her unkempt hair long and golden white ... her kimono filthy and tattered,” with cannibalistic tendencies. In one tale a mother traveling to her village is forced to give birth in a mountain hut assisted by a seemingly kind old woman, only to discover, when it is too late, that the stranger is actually Yamauba, with plans to eat the helpless Kintarō. In another story the yōkai raises the orphan hero Kintarō, who goes on to become the famous warrior Sakata no Kintoki.
Yamauba is said to have a mouth at the top of her head, hidden under her hair. In one story it is related that her only weakness is a certain flower containing her soul.
In one Noh drama, translated as, Yamauba, Dame of the Mountain, Komparu Zenchiku states the following:
The play takes place one evening as Hyakuma is traveling to visit the Zenko Temple in Shinano, when she accepts the hospitality of a woman who turns out to be none other than the real Yamauba, herself.
Otis:
Did I really take her and keep her with me?
Cover her face up so she couldn't breathe?
Cut her eyeballs out so she couldn't see?
I still feel like she is looking at me.
Brought her to the basement and took off her clothes
Did I do the right thing?
God only knows!
Chorus x 4:
Maybe I was only wondering if I could open up your body
Take your heart out and consume
("God only knows!" throughout chorus)
Otis:
Am I really like this? Is this really me?
Am I really the person I want to be?
Is it this life that has created me?
Am I a product of society?
Did I really eat pills cause everything's fucked?!
Can I fall asleep and just never wake up?!!
Chorus x 4:
Maybe I was only wondering if I could open up your body
Take your heart out and consume