Bingender (or binarygender) is a gender in which one identifies as the two binary genders. It is a subtype of bigender, specifically for those who are male-female bigender. It may overlap with androgyne, though androgyne also includes genders that are a single gender in between male and female, or ambinary, but bingender isn't essentially simultaneous.
The term was coined by FANDOM user RoseWatera, for the experience of an anonymous FANDOM user on January 4, 2021. It was coined through this page and has no outside resources.
The bingender flag was created by FANDOM user RoseWatera on January 4, 2021. It was made to look similar to, but not exactly like, the androgyne flag.
The alternate flag was created on or before September 17, 2021. It is unknown who created the flag. It has no confirmed meaning.