Fluidflux is a gender identity which refers to an individual with a gender that moves between two or more genders and also fluctuates in intensity. Sometimes described as the combination of both genderfluid and genderflux identities. The most popular way to identify as Fluidflux is to add the official flag or the flux symbol (φ) or phi greek letter to pictures, descriptions or any other forms of identity or personal possessions. Alternative Flag and Symbols