It is what you call a girl who has got it all in one package.
Wangster talk
Dude, check out the stir fry chille pepper
When you give an extremly sassy person drugs, and they become chill af.
Harold: I gave Monica some weed yesterday and she was a fucking chill pepper.
Taylor: Thank the heavens. She never gets off her fucking high horse.
Monica: LETS ALL BE CHILL PEPPERS TOGETHER!