A Cisgender/straight person sobbing and shitting themselves about being oppressed by LGBTQ+ people, and being a fucking coward about it and not explaining their reasoning (because spoiler alert, they have none).
Person 1: did you hear that Elon is going to ban the term "Cis" and "Cisgender" on Twitter?
Person 2: yeah, he's a fucking Cissy.
Elon: THAT'S SO MEAN!!!!!!!!! I'M OFFENDED WAAAAAAAAAAAA
(pronounced like 'sissy') a poor, abused, and persecuted beneficiary of cisgender privilege who cries and complains because there is a new word for what he or she identifies as.
Sure. Ben is gay- and that's great for Ben, but hes still a big cissy.