A ghostly-masculine and feminine gender in the Spectral Gender System. These individuals feel connected to ghosts, and feels both an masculine and feminine gender connection that isn't the same as a feminime or masculine human gender is.
For example, these individuals could feel small or large connections with the terms bigender and etc, but feel an inhuman connection to the gender that's Ghostly/fully ghost.
Though it isn't exclusive to just ghostkin individuals, as the gender system says, it is an optional term for all spectral identities