Cuca is a character from Brazilian folklore, often depicted as a witch or a monster. She is known for her frightening appearance, which typically includes a large, scary face and sharp teeth. Cuca is said to capture misbehaving children, serving as a cautionary figure to encourage good behavior. In popular culture, Cuca has appeared in various forms of media, including television shows and children's stories. One notable representation is in the Brazilian children's program Sítio do Picapau Amarelo, where she is portrayed as a mischievous antagonist. Cuca's character embodies themes of fear and morality in folklore.