To devastate your opponent by grabbing the throat and lifting the person off the ground and forcing him into the ground with unforgiving force. Widely used in all wrestling federations around the world. Widely used as a threat or inside joke with wrestling fans.
To grab who you hate's neck, put their arm over the arm you are using pick up and slam. I did it to kid who was annoying me on concrete, he split his head open and had stitches.