A gender which is only partiallyconnected to a gender (male, female, or non-binary). The other part is usually agender. Demigender people can be of any AGAB (assigned gender at birth).
“Sam is a boy in my history class.”
“Actually, she identifies as demigender — more specifically demigirl — now and uses she/they pronouns.”
Like a mix of being nonbinary and a boy or girl. Like a demigirl is a mix of nonbinary and a girl, demiboy is a mix of nonbinary and a boy. So it's like nonbinary but you kinda relate to one gender a bit more. Demigender is a real gender identity and you shouldn't say it's fake because it's a real thing.
Sarah: hey everyone I think I'm demigender
Everyone: what's that?
Sarah: it's like when a nonbinary person relates to one gender more than another, so I'm a demigirl so it's kinda like I'm a mix of a nonbinary person and a girl.
Demiagender (not to get confused with Demigender, which has a very similar spelling) is a gender identity describing someone who identifies partially as agender and partially as another gender/other genders. Anyone can identify as Demiagender regardless of the gender they are assigned at birth.