Fessigender

Fessigender
Fessigender - a subset of genderflux where someone have a gender (usually 100%, rarely floating between 100%-80%) but they become agender/genderless and/or floate between 10%-0% of gender while being physically tired (exclusively or not)

One may (but don't have to) be slowly getting from 100%-80% to 10%-0% of one's gender while getting more and more tired.

Other
Fessiboy - someone who's "default" gender is male

Fessigirl - someone who's "default" gender is female

Fessinonbinary (fessienby) - someone who's "default" gender is nonbinary

Entymology
the prefix fessi- comes from the latin word meaning "tired"