Abyssium is a xenogender identity in which one's gender is straight from the abyss. It has no other distinct qualities to it and is neither fluid nor flux. It will eventually either dissolve or grow.[1]
Gender Wiki
Abyssium is a xenogender identity in which one's gender is straight from the abyss. It has no other distinct qualities to it and is neither fluid nor flux. It will eventually either dissolve or grow.[1]