Gravigender or Gravgender is a xenogender that is extremely intense and strong. One's gender may also feel heavy.
History and Flag
Gravigender was coined on July 17, 2016 by Tumblr user eaglestrike.[1]
Both flags were created by DeviantArt users kaktusyolo13 and Pride-Flags on August 1, 2016.[2][3]
References