Mousegender

Mousegender is a xenogender that feels small, soft or fluffy and it can feel that it may hide or sneak around, or in a way be hidden or hiding. It may feel like it is hiding in a cozy or soft place or also may be a gender that is a connection to mice or incorporates mice to better understand their gender. It is a faunagender and may also be a kingender.

An alternative meaning by u/IWriteALot2 is a gender that feels small like a mouse or is connected to mice in some way.

History
Mousegender was coined by Tumblr user Meowdy on December 23rd, 2018.

Resources
http://archive.is/kXFmy

https://lgbtqiarchive.tumblr.com/post/182127397495/frontavant-genderquirked-for-bnha-kins-and

I made two flags for xenogenders that don't already have flags : QueerVexillology (reddit.com)