Jeff I was going to say (again) that I don't think the word "churn" means what he thinks it does.
Jeff he's picked up on what I call "tube speak" - Many you tubers not only use specific terms, but they even have their own inflections or prosody.. the intonation of their words and they way they stress (or don't) speech. I find it fascinating in an annoying kind of way. Anyway he's picked up on that term, for some reason. Maybe he thinks it resonates with his younger audience. Me I think it sounds like what it is....repetitive, mindless junk (those 'sushi's' for one).
Tonus some of his performances could be described as stomach-churning, so there's that.
😂😂😂