Blue Screen of Death n.
[common] This term is closely related to the older Black Screen of Death but much more common (many non-hackers have picked it up). Due to the extreme fragility and bugginess of Microsoft Windows (3.1/95/NT versions), misbehaving applications can crash the OS. The Blue Screen of Death, sometimes decorated with hex error codes, is what you get when this happens. (Commonly abbreviated BSOD.) This event is sufficiently common to have inspired the following haiku from Alan Tuplin:
Your system which soared So freely on gliding wings now hangs, frozen and blue
The following entry from the Salon Haiku Contest, seems to have predated popular use of the term (and may indeed have inspired it):
Windows NT crashed. I am the Blue Screen of Death No one hears your screams.