When a human being or creature is in a state of nothingness. The individual has lost all train of thought and is completely useless. A victim of shutdown cannot think, has no motor skills, appearing to be much like a pilon. Shutdown is often caused after a day of vigorous activity, or simply from being lazy.
person A: "China is SO the capital of Thailand."
person B: "nu-uh!"
person A: "yuh-huh! ask person C."
person C: "actually, BANGKOK is the capital of thailand."
person B: "ohhh, shutdown!"