Duosex

Duosex is an identity in which a non-binary individual feels a connection to both the male and female sexes. It was originally meant to be an alternative term for "non-binary" and was created by transmedicalists as an exclusive label for those with dysphoria.

Alternatively, duosex can also refer to those who feel a connection to both the male and female sexes, regardless of gender or gender sonance.

History
The term was originally proposed by Reddit user Chapter-Salty on June 26, 2021. The truNB subreddit was polled, and duosex/nullsex received the most amount of votes. The term was later re-coined by Tumblr user mysticsnowstorm on August 16, 2021. It was defined as a "term for those who identify with male and female and/or would like to transition towards both, regardless of gender identity," with the addition that it could be used regardless of whether one experienced dysphoria.

Flag
The duosex flag was created by Tumblr user mysticsnowstorm on August 16, 2021. Blue represents acceptance and inclusivity, white represents the variety of gender identities a duosex individual may have, and purple represents the combination of male and female.

The other duosex flag was created by Reddit user M3lonKat on August 29, 2021.