so, firstly, a reminder to all those who weren’t already aware: intergender is a term specifically for intersex people, and if you’re not intersex, you shouldn’t be using it. for more information on that, please see this post. 

i would define twixtgender as a gender identity that is somewhere between male and female - sort of on a continuum or spectrum between male and female. if someone has a better definiton for twixtgender, please let me know.