<jargon> A description of a system that gives no indication that it is still working. This might be because it has crashed without being able to give any error message or because it is busy but not designed to give any feedback.

Compare: buzz.

(01 Sep 2004)

<neurology, psychiatry> A phase of schizophrenia where the patient is unresponsive. The tendency to assume a fixed posture and inability to move or talk are characteristic of this phase.

(16 Mar 1998)