A multigender where someone who is partially (a) nonbinary gender(s) and part gendernull or both at the same time.
History
The term Nullenby was coined by tumblr user nonbiarrow on 09/05/2021, as well as its flag.
Flag
The flag shows three stripes: grey for gendernull, yellow for nonbinary gender and light yellow for being inbetween or both/all genders at the same time.