Femboyflux is when you identify as a male, however your intensity fluctuates heavily from masculine to feminine and back in such a way it's affecting the person's representation.
The term derives from fem - for feminine, from boy - for male, and from flux - how one feels the intensity.
The counterpart to this is Mascgirlflux.
History
The term was coined by user P0CKP1CK3T on June 27, 2021.
Flag
The flag was created by user P0CKP1CK3T. The dark blue in the middle represents the core gender, which is male. The layers of blue represent the level of masculinity, and the layers of pink represent the level of femininity.