Impesgender can be described as a fluid gender in which someone's gender "flips," or changes too rapidly to be traced or identified. Its described as fast-moving, quick, and fluid.
History
Impesgender was coined on or before September 27, 2014 by an unknown user on MOGAI-Archive.
Flag
The flag was created on January 19, 2018 by Pride-Flags on Deviantart. It has no confirmed meaning.