Andersatyr is a gender that is both Xin, Masculine, and Outherine. Someone might Identify as Andersatyr because:
1) They are xin, masculine, and outherine at the same time
2) They are fluid between masculine, xinic, and outherine genders
3) Their gender is masculine, xin, and or outherine but feels like one or more of the other aspects
Keep in mind that these are only examples, and that you can use this label if you want