A Cuntervention is an intervention
held for someone who is a cunt
. Everyone knows this person is a cunt and they want to tell this person because he or she doesn't realize. It can involve banners and letters for said person to open and read. they should all say something like "You are a cunt" It differs from a normal intervention because it offers no friendly advice or support on how to overcome the problem, it just informs this person of how much of a cunt they are.
Awesome girl: Hey you know that swaggy prick
Awesome dude: Yeah.
Awesome girl: he is a cunt
Awesome dude: yeah
Awesome girl: we should tell him
Awesome dude: lets have a Cuntervention