Ninjagender

Not to be confused with Ningender.
Ninjagander, or Ninjender, is a xenogender that is related to ninjas. This could be referring to historically accurate ninjas or the modern day interpretation of ninjas. It involves either strongly identifying with them, or wanting to include them into one's gender.

One could also feel like their gender is fast, sneaky, and mysterious, like an assassin in the night.

History & Flag
Ninjagender and its flags were both made by Tumblr user Biggie-mothertruckin-Cheese on or before March 28th of 2022.