So you're cool with using just any words to describe just anything, so long as the vibe is right. Great. I'm sure that'll help a lot with everybody's understanding of the world.
The closest analogue for text I can think of is when you use an LLM to write in the style of someone else, like Shakespeare. But "deepfake" is a stretch because AI-generated text in someone's style is not particularly convincing that it actually came from them, and wasn't too hard to do manually before. Plus doesn't raise the same ethical questions.