Buka (Slavic folklore)

Buka or boogeyman (English Bogeyman) is a folklore character who frightened naughty children.

A creature from Slavic mythology. He usually looks like a furry creature with a huge open mouth and a long tongue. He can turn into a pile of hay, and also make the sounds of a growling dog, while remaining invisible. Sunlight is deadly for him.

In modern ideas, he lives under the bed or closet, where he can pull at night.