A chaotic situation where some effort has gone thoroughly wrong; a fiasco or clusterfuck.
A tightly-packed crowd of people, especially photographers, journalists and cameramen, covering a news story.
Someone (especially a woman) who is unbalanced and considered a mess, a disaster, one who is suffering personal ruin.
The aftermath of a train crash.
A disaster, especially one which is large in scale and readily seen by public observers.
To ruin utterly and catastrophically, to cause to end in disaster.