Ghosserin is a gender that feels spooky and transparent, or related to themes of ghosts or Ghost-type Pokémon. It is part of the Pokétyren system.
Ghosserin was originally coined by Mod Decima on the Tumblr blog pokemoncoloursplash on the 1st of May 2020,; however, it was incorrectly coined as ghostcoric. After the error was pointed out, thepokedexisgay remade the flags and gave them new names, and it became ghosserin on the 2nd of May 2020.
The original flag was created alongside the incorrect term by Mod Decima of pokemoncoloursplash on the 1st of May 2020. Following the error regarding the use of -coric, a new flag was made to go with the new name. The new flag was made by thepokedexisgay on the 2nd of May 2020 and posted alongside the renamed term.