Popgender is a xenogender that is connected to making popping sounds with your mouth (stim, tic or neither.) It is a fun and happy gender.
History
Popgender was coined by FANDOM user Mouchette on Nov 30th, 2021. The flag was designed by them on the same day. [1]
Flag
Yellow and blue is for feeling happy
Red and pink is for the popping sound
White is for gender