Sexfluid

Genitalfluid or Sexfluid is when someone’s ideal genitals/physical sex varies over time. It can also mean that one's opinion of their genital set or physical sex changes.

One who identifies with this may or may not also have a fluid gender, however this is not a requirement, as not all genitalfluid individuals are multigender, and not all multigender individuals are genitalfluid.

History
The term was coined by Tumblr user plurgai on May 20th of 2020.

Flag
The designer of the Genitalfluid flag is plurgai on Tumblr. It was coined on May 20th of 2020. It has no known meaning, however it uses the colors from the genderfluid flag.