Nullenby is a multigender or gendervast where someone who is partially a non-binary gender(s) and partially gendernull or is both at the same time.
The xenogender equivalent is xenull, the neutral equivalent is neutranull, and the androgynous equivalent is androgynull. The fluid equivalent is nullenbyfluid.
History
The term was coined by tumblr user nonbiarrow on May 9th 2021, as well as its flag.[1]
Flag
The flag shows three stripes: gray for gendernull, yellow for non-binary gender and light yellow for being inbetween or both/all genders at the same time.[1]