Jackie Petty was the obnoxious, petty, miserable, loud-mouthed sister of Jason in New Jersey Drive
She was played by Samatha Brown.
While her time is short, part of the reason she's a villain is cause all she is a menace who whines and complains and likes to start drama. When her brother tries everything to keep her off the streets (not that her brother is necessarily better), she outright disrespects him.
She is a whiny loudmouth who loves drama and is a nuissance. The stupidity of her actions earns her a comedic villains status since, much like Midget, she was written to be a foil.