Flirtgender

Flirtgender, which can also be known as Amogender or Genderamas is a gender that is connected to flirtiness. This can be thought of as flirting with people, or the world, or one's surroundings, or even flirting with gender itself.

Flirtgender was coined on August 25, 2014 by tumblr user fluiditylife.

Flag colour and meanings
The flag was created on September 12, 2015 by pride-flags on deviantart.

The colours on the flag are pastel and bright to represent flirtiness.