I remember my Junior High teacher showing the TED-Ed video of this book and photos of the pages to me and my classmates. We spent the rest of the day trying to translate the words (with no success, obviously) and theorizing what the plant drawings were for.
Until the day comes where researchers finally figure out what the book really is about, Randall's D&D explanation will be the answer in my mind.
Link to the Wikipedia page about it in case y'all wanna see it: https://en.wikipedia.org/wiki/Voynich_manuscript