Genderfae, also known as genderdoe or genderthil, is a form of genderfluidity that never encompasses male or masculine genders. Genderfae individuals can be fluid between any range of feminine genders, unaligned or neutral genders (such as aporagender), or genderlessness, but they never experience masculine genders. Genderfae is sometimes considered a non-masculine subset of fluidflux.
The alternative terms genderdoe and genderthil have been coined for those who do not want to use "fae". There is currently a movement to solidify into only using genderdoe or genderthil due to fae being revered in certain cultures.
The masculine complement to genderfae is genderfaun. Variants of genderfae include genderfaer, in which one can experience masculine genders but is never a binary man, and genderselkie, where the nonbinary genders experienced are often xenic.
Genderfae is not to be confused with faegender, which is a gender that changes with the seasons.
Demifae is a gender which is partially static and partially fluid (demifluid). The fluid part of the gender is only fluid between identities which are not male, male-aligned, or masculine. The static part of the gender can be any gender of combination of genders.
The term was supposedly coined anonymously in 2014, on the now defunct blog "mogai-archive". The genderfae flag was designed by the user Superpopcorn101 on Deviantart on January 9, 2017. The colors don't have individual meanings, but the range purposefully doesn't include blue to indicate never including masculine genders. A pastel color scheme was used to give the flag a more "fae" feeling. Another flag was created by user strbwryfemme. @strwbryfemme's flags should be used with caution as fawn has a history of exclusionism against m-spec lesbians. 
Faeflux, or Doeflux, is a combination of fluidflux and genderfae. It defines when one is fluidflux but never encompasses any masculine genders. The masculine equivalent is faunflux. The neutral equivalent is florflux.
History and Flag
The main flag was created by user strbwryfemme.