In one of the episodes in the TV-Show “Rick and Morty”, Rick uses the word “schwifty” when he is singing.
Obviously, this is just a made-up word. But my question is how is such a made-up word categorized? For example, I know some would argue that it is a “neologism”. However, it is not really an accepted or mainstream word yet. So I assume it has to be called something else.
Maybe a “Nonce Word“? In the sense that it has a meaning that the listener can guess at, despite not existing before.