Kellergender is a Xenogender and an Aromagender. It feels like the smell of a basement (dusty, stone-like etc.).
It might feels Masculine, Feminine, Androgyne, Neutral or something else, but that is not required.
History
The Term was coined on May 16th 2021 by FANDOM user Bean.Venus.
„Keller“ in German means Basement, so „kellergender“ means „basementgender“.
Resources
Kellergender Flag's Symbol