Nuncgender is a gender that feels layered and is always shifting. The dominant gender is usually the one that is on top/pushing forward the most.
Nunc is the Latin word for "layered"
Flag
The flag has four stripes horizontally, which symbolize agender, nonbinary/xenic, masculine/masc-aligned, and feminine/fem-aligned genders from top to bottom. The stripes vertically mean the same things, and additionally symbolize layering!