The Blue Screen of Death is the Windows error screen shown after a fatal system error forces the computer to stop. It became a shared symbol of PC failure in the 1990s as home computers spread, and screenshots of the blue screen were widely joked about online. The harsh crash tone paired with it in edits turned that visual into an audio cue, so creators now play the sound even without the screen itself to signal a total breakdown, a bad decision, or a joke that has overloaded someone's brain.