Demifluid is a gender in which one's gender is partially genderfluid with the other part(s) of one's gender being static. The static part of the gender can be any gender or combination of genders. For example, one's gender could be partly woman while the other part is fluid between between man and a non-binary gender.
Demifluid people may also identify as non-binary, genderfluid, and/or transgender.
History
Demifluid was coined by an unknown at an unspecified point, however it has been around since at least 2016.
Flag
The demifluid flag was coined by a deactivated Tumblr account on or before July 28th of 2016. It has no confirmed meaning.
Resources
https://pride-color-schemes.tumblr.com/post/148101123336/demifluid-demigenderfluid