Klingon mind meld
The act of intercepting an incoming headbutt with one of your own. Not a particularly wise course of action unless one has an exceptionally tough skull, or your opponent was foolish enough to headbutt someone wearing a helmet.
I saw Frank and Scooter fighting behind the gas station. Frank grabbed him and went for a headbutt, but Scooter reared back and turned it into a Klingon mind meld!