fluid xenogender described as "a gender that is very fragile and sensitive. it feels more broken/damaged the more it is invalidated/hated on; it can be used by itself or with other genders, e.g. glassboy, glassgirl, glassnonbinary, etc."
Glassgender was coined on or before August 23, 2014 by Tumblr account MOGAI-Archive.
The glassgender flag was created by DeviantArt user pastelmemer, 14th August 2015.