Hydrogender

Hydrogender can be defined as a gender which shares qualities with water, such as currents, or tides. It can also be compared with qualities of water.

The term Hydrogender was coined on August 31, 2014 by tumblr user atwoodsbow via mogai-archive.

Flag colour and meaning
The Hydrogender flag was created on October 3, 2015 by pride-flags on deviantart.

The colours and patterns on the flag are meant to aesthetically represent the flowing of water.