Gendernegative or G- is a term that can be used by genderflux individuals to describe the state when one feels that their gender is not present. When gendernegative one feels fully or almost fully genderless, with little to no gender present.
The opposite is genderpositive. It should not be confused with gender-.
History
Gendernegative was coined on June 24, 2014 in a satirical post by tumblr user allofyouguysarefuckingannoying. The terms were reclaimed by tumblr user askanonbinary on the same date.
Flag
The flag was created on or before August 28, 2015 by Pastelmemer and posted to Pride-Flags on Deviantart on that day. There are no meanings for individual stripe colours. Rather the colours were chosen to represent negativity, a sedentary state of being, mellowness.