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.
A mess; the result of a blunder.
Rubbish, waste matter.
Tailings: waste rock from which the wanted gold, minerals, opal, etc., has been extracted.
Nonsense, rubbish.
Overburden: waste material generated while searching for minerals or while mining, such as when sinking a shaft.
To clear waste material out of a mine.