ろくろっ首くびろくろっくびMeanings1nounrokurokubi; long-neck womanA yōkai from Japanese folklore, typically a woman whose neck can stretch to great lengths. Often depicted as a human by day and a long-necked monster at night.See also: ろくろ首ろくろっ首くびは、夜よるになると首くびが伸のびる