Augender

Augender is a gender identity that is always growing and possibly combining other genders and traits into one gender. It is similar to plugender, but exists in a state of growth.

History
It is unknown when the term or flag were created, but they have existed since at least February 4, 2018, when they were published by Pride-Flags on DeviantArt.

Resources
https://www.deviantart.com/pride-flags/art/Augender-729122697