Gendergoth is a term for when one's gender is best described as “goth.” It may be when one's gender is dark/spooky/goth/etc. One's gender may be related to one being goth. One may also be gothcoric or have a gender that is related to a goth aesthetic, or when one's gender can otherwise be described as “goth”.
History
Gendergoth and the flag originated on the discord server for r/lgballt on November 24, 2020. It was created by a user who wishes to remain anonymous.