ive looked on both transid.org and tumblr and cant find ANYTHING similar to what i want so heres:
transguest666
transguest666 is a transcharacter/transperson term for when one identifies as or just is guest 666, the roblox myth.
i intended for this to be for the roblox myth specifically, but if you are a specific iteration of guest 666, such as from a specific game or a specific design, you are free to use this term!
