Who chewed the gum in Charlie and the Chocolate Factory?

In "Charlie and the Chocolate Factory," the character who chews the gum is Violet Beauregarde. She is known for her competitive nature and obsession with Chewing Gum, which ultimately leads to her transformation into a giant blueberry after trying Willy Wonka's experimental chewing gum. Her character serves as a cautionary tale about the consequences of gluttony and bad behavior.