Personagender is a term for people who use a specific term when saying their gender in public, even though they don't actually identify completely with that term. People who are personagender may narrow down their gender to make it simpler, or they may pretend to identify as something that they don't in public to avoid transphobes. For example, someone who feels comfortable with the label "genderfluid girlflux genderflux" may simply say in public, "I'm non-binary" to avoid confusion. Another example is someone who is transmasculine may say they are a girl in public to avoid transphobes.
Personagender may also be a prefix. People who are personagender may also say they are personagirl, personaboy, personanonbinary, etc.
The sexual equivilent to personagender is personasexual.
History
The term was coined by Tumblr user @fathermartinarchimbaud on June 20th of 2017.
Flag
The flag was coined by Tumblr user autistic-italy on June 20th of 2017.
Resources
https://pride-color-schemes.tumblr.com/post/162047823121/personagender