A person who completely controls their significant other into doing whatever they want...
...generally hated by all of the significant other's friends.
Guy 1: What happened to Mike? He used to be so cool, but now we never see him.
Guy 2: Yeah, that's because he does whatever his Cuntriloquist tells him to do.
Guy 1: That's true. Karen is such a bitch.
The act of inserting your hand into a girls anus and applying pressure towards the vagina to push out queefs.
Guy 1: I think my Cuntriloquism career is finally taking off!
Guy 2: Dude, that's fucked up...