If Fauchi can change the definition of "gain-of-function" to avoid criminal prosecution for lying to Congress, then I don't see why not? If there is anything to learn from 2020-2021, it's that words, such as racism and gender and many more, are just pesky obstacles meant to be molded to fit ones own narrative.
If you consider yourself pan sexual, get castrated, then fall in love with an asexual robot, what will you consider your gender to be?