Exorgender or xorgender is an umbrella term referring to the binary genders (male and female) and any other genders that are primarily related to maleness and/or femaleness.
Its counterpart is epigender.
History and Flag
Exorgender was coined by Tumblr user arco-pluris on August 21st, 2018. Nothing is known about the flag.[1]
It originates from the term exorsexism. EXOR in set theory means "Exclusive OR". Xor- in this cases implies it's not essentially exclusive.