Trans ally
A trans ally is a supporter of the ideology of transgenderism without themselves identifying as a trans person. A trans ally identifies as a cis gender person, namely, someone who firstly, regards sex as something assigned to a baby at birth, and secondly, identifies with the gender that supposedly corresponds to that "assigned" sex. A trans ally acknowledges that he or she does not understand what it means to be trans, but attributes this inability to make sense to being cis.
I know that one need not have gender dysphoria to be trans, and that cis people (especially adolescent girls) also suffer gender dysphoria (or anxiety). I also know that trans people are not the same as intersex people. However, as a cis man and trans ally, I will demand that feminism and female spaces must centre trans women even if they don't pass as women, have beards, have their penis intact and have never taken HRT.