Interesting. I've only heard "a Youtube" to mean "a Youtube channel". I think I'd also be ok, though, with it meaning a youtube video providing that the video was of an educational nature.
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Recently, noted fantasy author of yore, J.V. Jones, who's returning to writing to finish off her saga, posted a teaser for the new book, with a painting, over which was a tagline: "She'd hadn't meant to [do something I can't remember what it was]".
The line wasn't in the extract she posted, so I don't know if it appears in her novel, or is just something she made on the spur of the moment. But the idea that a relatively high-profile novelist is using this as part of a commercial marketing plan makes this an unusually prominent place to find a novelty!
Googling shows me that the phrase "she'd hadn't" appears mostly in novels written by american women in the last five years or so, although of course Google isn't a particularly objective scientific instrument in this regard.
Fascinating, though. Because it's not just a random weird thing, it seems specifically to be a step in the evolution of English toward synthesis.