Perivariflux is an identity in which one is sometimes perioriented, but is also sometimes varioriented. In other words, one's sexual and romantic orientation sometimes align or "match," and other times they don't.
For example, someone may be cupioromantic and gay at one point, but be omniromantic and omnisexual at another.
The flag is a combination of the perioriented and varioriented flags. The purple and orange are blended in the center to represent fluctuations between the two.