Wonka's Magic Chewing Gum, also known as 3-Course Dinner Gum, is a fictional gum created by Willy Wonka in The Inventing Room of his factory. It is unknown how many flavor combinations Wonka has planned out, and the only one known is the tomato soup, roast beef, and blueberry pie.
After Wonka created the gum, he tested it on around 20 Oompa-Loompas, but thanks to a strange function that Wonka can't seem to fix, the blueberry pie flavor somehow turns the one chewing the gum into a giant blueberry. Anyone who has turned into a blueberry must be taken to The Juicing Room immediately.
During Wonka's tour, Violet Beauregarde took a piece of Magic Gum without listening to any warnings. As a result, she ended up as a blueberry.