Weedgender is sub-identity of Druggender, and is effected by how high you are on THC. This could be smoking, vaping, dabbing, or edibles. Those who identify as Weedgender feel more connected with their gender while high, or being high makes them feel a new gender entirely.
History
Weedgender's source, Druggender, along with its flag, was coined by tumblr user Gender-Garden on July 30th, 2018. The original post can be found here. The Weedgender flag was created by Fandom user MiamiHotlines on June 30th, 2021 and is an edit of the original Druggender flag.
Druggender was most likely created as a joke identity, but could be reclaimed by neurodivergent individuals who use marijuana. (For example, smoking to help with mood or overstimulation.)
Source
I coined this term myself.