Sleaze (noun)

1. A seedy, sordid, or morally questionable person or place.
2. Something or someone that is dirty, greasy, or unpleasant.
3. Something or someone that is considered morally objectionable or disreputable.

Origin:

The word sleaze is believed to be a variant of the word sleazy, which is of uncertain origin, it may have been influenced by the words "slime" or "slus.h"

Examples:

1. The sleaze at the bar made her feel uncomfortable and she decided to leave.
2. The politician was accused of being involved with sleaze and corruption.
3. The sleaze in the movie made it hard for her to watch.
4. The sleaze in the hotel made him want to leave immediately.
5. The sleaze of the city's nightlife was well known.