Vastgender

Vastgender, or gendervast, is a single gender that can be described by, or is made up of, many different genders but is still a single gender. This can make the gender hard, or even impossible, to describe using a single label. It is similar to genderhoarder but is not fluid between genders. Vastgender's "in nature" term is VASIN or Vast-in-nature

History
Originally coined on or before June 7, 2018 by tumblr user neo-identity, with the flag made at the same time.

Flags
The original flag was made to represent varying gender experiences, with fuchsia representing femininity, purple representing both masculinity and femininity, blue represents masculinity, and shades of green represent neutral, genderless, and/or xenic genders.

The alternate flag was created by an anonymous source using the original flag as inspiration but expanding upon it with a prism theme to represent all the genders that form a single gender, like all the colors that make up white. The stripes represent different 'in nature' or 'aligned' genders. Black for voidine, fuschia for liminal, pink for feminine, orange for xenine, yellow for nonbinary, green for agender, teal for outherine, blue for masculine, and purple for kenochoric. The layout of the flag can also be easily adapted to represent a specific persons vastgender.

Resources
Original coining