Cults and cult-like movements will often coin new words as well as recycle existing words, phrases [View all]
This has a couple of functions...
These groups often have narrow ideologies that are quite extreme, so with these words and phrases, they can refit the world and explain how it works in a new sense
They can also use these words and phrases to communicate with other insiders as well as identify and denigrate the outsider, the 'other'.
The Hutaree had their bizarre rank system - Radok, Boramander, Zulif, Arkon, and Lukore
Scientology has "fair game", "suppressive persons", "clear", "dead agent", and more
White supremacy has "1488", "14 words", "RaHoWa", and others
Incels identify their 'enemies' (AKA anyone with a sexuality they don't share) as "Chads" or "Beckys"
And then you see today's right wing... throwing out things like "political correctness", "virtue signaling", and "cultural marxism", making sure to use "liberal" as an insulting adjective, and describing anything they don't like as "socialist"