Non-bxnary (Pronounced non-binary X) is a gender that is both unrelated to masculinity/femininity or anything in between, and is also agender/otherwise genderless.
History
The term was coined by Wiki user Rabbox on the 1st of April, 2021.
Flag
The flag was coined on the same date, by the same person. It is based off the bxy/gxrl flags.