Based on the Russian Matryoshka doll(lit. Nesting doll or Stacking Doll), it refers to a set of wooden dolls of decreasing size placed one inside the other. Traditionally the outer layer is a woman wearing a simple Russian peasant dress, it can be of either gender. The smallest, innermost doll is typically a baby. Much of the artistry is in the painting of each doll, which can be very elaborate. The dolls often follow a theme.
Devil Summoner: Raidou Kuzunoha vs. King AbaddonEdit
"A miniature doll shaped like a farm woman. Skilled summoners use it as a tool to attack their enemies. Originally made in reverence to the fertility goddess, its abilities as a medium made it ideal for curses."