Abandoe is a gender similar to that of an abandoned house- it could feel dead/genderless or have themes of being empty and intimidating.
The original definition only referred to abandoned houses and intimidating emptiness. FANDOM user Daccharine expanded onto the definition and created the two alternate flags on January 11, 2021.
- Archived Tumblr post coining abandoe.
- Tumblr user genderrose, currently known as gendersylvestrium, has also gone by the usernames altergender, aresgoesgender, beysgender, exosphenic, genderrose, hawaiiaine, mason-the-owlkin, mogai-minecraft-snail, ostereigender, polysexualtea, and thepancherryblossom.