A form of fluid identity were ones identity changes but they always feel like the have been that identity forever.
For example, one day a foreverfluid individual may feel like a girl so will feel like they were always a girl and will always be a girl but the next day they feel like a boy and feel like they have always been a boy even when they were a girl the day before.
Due to these feelings a foreverfluid indvidual might be distressed by their identity, feeling like it shouldn’t be fluid. They may be in heavy denial of their fluidity and/or refuse to drop terms even if they no longer identify with them. Due to this distress, the term can also be called foreverid if the indvidual would like to not associate fluidity with their identity.
Foreverfluid can apply to any aspect of identity, it is not just a gender term. If wanted you can specify what part of the identity the term applys to e.g forevergenderfluid, foreverabledfluid, foreverracefluid, etc.