Defluogender is a xenogender that seems to have floated away, or is lost in some way.
History
Defluogender was coined on or before November 9, 2018 by Tumblr user Beyond-MOGAI-Pride-Flags.[1] As of March 2021, there is no known flag.
Flag
The first defluogender flag is designed by FANDOM user Purplepaperboy. The blue shades represent the vast sky, and the balloon represent the gender that floated away. The balloon is also there because of how they tend to get lost in the sky.