WIKI...definition of Futanari
Futanari (二成, 二形; ふたなり, literally "dual form") is the Japanese word for androgyny or hermaphrodite.[1][2] Until 1644, the appeal of sexually ambiguous, futanari characters portrayed by onnagata actors was a popular element in Japanese drama, and there is a flourishing futanari anime and manga genre in Japan today.