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A fake rich kid who thinks she's the main character in Gravity Falls. She acts like she's better than everyone else, but she ends up being friends with Dipper because he's too dumb to realize she's a total poser.
"I'm not even related to the Pines, but I still think I'm better than them," she said, while eating a muffin that cost $10.
"She's rich, but she still complains about how much her snacks cost," said Mabel.
"Pacifica is like a rich kid who thinks she's the best, but she's just a walking Instagram post."