A libertarian, most likely male, who believes the opposite gender's love for liberty is the green light to make a pass. Unfortunately, the creepertarian does not receive signals of rejection, and drives the victim away from the liberty movement entirely.
Creepertarian: "So I heard you're in to liberty."
Girl: "Yeah! I love the Liberty Movement!"
Creepertarian: "Me too! Except I only adhere to the non-aggression principle outside of the bedroom..."