Gender-fuck: I told you to call me Tiffany, Bitch!!
It is based upon the belief/idea that either gender does not exist (but only in the context of culture) or that there are multipule genders (beyond male and female), including but not limited to transgender.
It is giving a statement of freedom for all genders in a society where gender confines people. It does not mean that a guy wearing a dress is gay... He is just genderfucking; gender, sex, and sexuality are separate characteristics.
Although usually viewed as a new phenomenon, genderfuck may be as old as humankind. Notable premodern examples include the witches in Macbeth, who would have been played by men with beards in cross-dress.
2: "He genderfucks." or "He's a genderfucker" or "He's genderfucking."
1: "So, then, he's gay?"
2: "No, He's an ally."
"I dress genderfuck."
"I am genderfuck."
yaaaaaay gender fuck.