Cishet

[Britney]

An abbreviation of [cisgendered] (opposite of [transgender]) heterosexual: a person that identifies as the sex they were born as and are attracted to the opposite. Mostly used in [social justice] circles as an [ad hominem] attack to people who have to audacity to be born identifying with their birth gender and have an opinion different than theirs/zheirs/xirs.

[Mark Zuckerberg]

an insult used on tumblr when you cant accuse someone of doing something wrong.