tuyul (Javanese: thuyul) in Javanese mythology only, and its surroundings, especially in Java, is a dwarf-shaped creature with a shaved head of the kind of Ifrit jin. Other depictions that everyone does not agree on are silvery, sociable (in the sense of community and leader), and sound like chicks. Tiara can be employed by a human employer for some reason, especially stealing (money). To ward off tuyul, people put yuyu in some corners of the house because tuyul is believed to like yuyu so he forgets the duty charged by the owner.
Tuyul also has a different type of white tuyul and tuyul black.
Source: Wikipedia