In a conversation with Fandango about the making of “Fury Road,” Miller was asked to explain the process of coming up with the names in the film, and he talked about where they originate and how they’re created:

“Fever dreams… if they stick. But they always have to be appropriate for the world….One of the things is that everything in the story has to have some sort of underlying backstory. Not just every character, but every vehicle, every weapon, every costume – and the same with the language. So [the concept] was always found objects, repurposed. Immortan Joe is a slight adjustment to the word ‘immortal.’ The character Nux says ‘mcfeasting’ instead of using the word ‘feasting.'”

As “Fury Road” unwraps its cruel, brutal world at breakneck speed, it can be challenging to keep up with the inner workings of its world, which are often never explicitly explained but presented as a natural, inherent component. In spite of this, the film succeeds in pulling audiences in because Miller knows exactly what every object, character, or costume represents, which allows the story to feel grounded and naturally coherent even when things that are alien or outlandish to our reality are introduced.

For instance, Miller explains that the name Slit simply conveys the gesture of one slicing one’s throat, which explains the character’s extremist behavior, even as a War Boy. Also, Slit’s self-mutilating instincts lead him to reopen and stitch back his wounds repeatedly, which earns him his name in the first place. Miller also said that The Dag is his favorite character name, because “in Australia, the Dag is sort of a goofball-type,” which lines up with her personality pretty well, as she is seen mocking Immortan Joe to make the other wives laugh.