What is "nuribotoke"

The is an animated corpse with darkened skin and dangling eyeballs in Japanese mythology. They are portrayed with largely bloated stomachs and occasionally having a catfish's tail. They are believed to have revived due to poor care of the household shrine. However, due to interpretations that they possess a tail, it may be that the corpse is controlled by another being or be a yōkai in disguise. It will act like a messenger of the Buddha but give out false prophecies to fool worshipers. It is also believed to dance often, more so during the demons' night parade ( Hyakki Yakō).