Mantinegender is a Xenogender where one's gender is related in some way to the Pokémon Mantine. It could be considered a subset of Pokémongender. It could also be considered a Kingender.
Mantinegender was coined by user ItsBug132 on January 16th 2022. The flag was created on the same date. It was requested by user Berryself on January 1st 2022.
Both versions of the flag include five horizontal stripes, all picked directly from the official Mantine sprite. Only the first flag features the Mantine sprite colored green in the center