Multigender

Multigender or Polygender is a term for someone who experiences two or more genders. It falls under the non-binary and transgender umbrellas. It can be used as a gender identity on its own or as an umbrella term. This includes bigender (two genders), trigender (three genders), quadgender (four genders), and so on, all the way up to pangender (all genders).

Multigender people may experience these genders identities at the same time, or their gender identity may change over time, making them genderfluid. If a person experiences fluctuation in the intensity of those genders, they could possibly be multiflux. The genders they experience can be male, female and/or any non-binary identities.

History
Polygender was first known to be described in 1995 as having "characteristics of multiple genders, deliberately refuting the concept of only two genders". In 1998, the word polygender was used in a transgender community on the internet called Sphere as an umbrella term for trans people whose genders were outside the binary.

Flag
The flag was made by DeviantArt user Pride-Flags on July 4, 2015. Blue and pink represent masculinity and femininity respectively, and those who feel partially male/female. Yellow is for genders outside the binary. Black is for those who feel partially agender. Grey is for those whose gender(s) change or fluctuate.

The multigender flag was made by an unknown user on or before January 16, 2016. It is unknown if it has a meaning.

Hahahjdgehejeh's version of the flag was created on the November 29, 2020. The purple represents being both partially masculine and feminine at once. The pink represents being partially feminine genders. Orange represents being partially a gender that is outside the masculine-feminine spectrum. The white/light grey represents being partially genderless or agender. Yellow represents being partially a neutral gender. Green represents being multiple genders at once. The blue represents being partially masculine genders.