[IBM, probably from slang belly up] Yet another synonym for "broken" or "down".
Usually connotes a major failure. A system (hardware or software) which is
"down" may be already being restarted before the failure is noticed, whereas one
which is "casters up" is usually a good excuse to take the rest of the day off
(as long as you're not responsible for fixing it).
cashe « CAST « cast « casters-up mode »
casting the runes » CAT » cat