Hellhole (noun)

1. A place of great disorder, misery, or suffering; a very unpleasant or harsh place to live or work.
2. A dark and unpleasant place or environment.

Origin:

The word "hellhole" is derived from the word "hell" which is from the old english word "hel" which refers to the underworld, the abode of the dead and the word "hole" which refers to a hollow or an opening in something, often used to describe a dark and unpleasant place.

Examples:

1. The prison was a hellhole where human rights were violated.
2. The city was a hellhole of poverty and crime.
3. The factory was a dark and dirty hellhole.