A nickname for the Vulcan nerve pinch, a technique used to render another lifeform unconscious by pinching a pressure point at the base of the victim’s neck with all four fingers opposing the thumb.
Guard: What the hell are you doing?
Lone Starr: Uh… a Spock Shock?
Guard: No, no, stupid. You’ve got it much too high. It’s down here where the shoulder meets the neck.
Lone Starr: Like this?
Guard: Yeah! (faints)