Xenagender (or xenogenderless) is an agender identity that is entirely xenine, or a xenogender that is entirely agender in nature. It can be considered an identity that is both agender and xenic combined.
History
Xenagender was coined on December 25, 2018 by Tumblr user imoga-pride.
Flag
The flag was coined on December 25, 2018 by Tumblr user imoga-pride.
Resources
https://imoga-pride.tumblr.com/post/181413462031/some-agin-xin-flags