Noun. (1) A back-stabbing cunt who plays games in an effort to intentionally make you look bad to someone of importance to you; i.e., your boss, friend, et cetera.
(2) A person who pulls stunts for the sake of causing trouble; most generally to make someone look bad and to make them look good for their own personal gain.
Jen: "Mindy was again talking trash about you in the building."
Audra: "What a Stunt Cunt! She so wants me fired."