n. 1. Describes the notional location of any program that has gone off the trolley. Esp. used of programs that just sit there silently grinding long after either failure or some output is expected.
"Uh oh. I should have gotten a prompt ten seconds ago. The program's in deep space somewhere."
2. The metaphorical location of a human so dazed and/or confused or caught up in some esoteric form of bogosity that he or she no longer responds coherently to normal communication.
Compare page out.