Galaxygender is a xenogender/neurogender where some feels connected to stars, planets, moons, black holes, milky ways and anything that is part of a galaxy. Galaxygender by itself is a neutral/androgynic term and can be used by anyone.
Galaxyfeminine/galaxygirl is a fem-aligned version where a person feels like their connection to galaxy is feminine.
Galaxymasculine/galaxyboy is a masc-aligned version where a person feels like their connection to galaxy is masculine.
History
Galaxygender has been a internet joke sometime but twitter user @bl0ss0mdance decided to reclaim it and make a coined term of it with a flag on June 27, 2020. Coining of the term and flags galaxyfeminine and galaxymasculine were by wiki user crayonpuppy.x, specially its alter Joey.[1]