Stinker

Noun

1. One who stinks.

   "Skunks are the worst stinkers in the animal kingdom."

2. A contemptible person or thing.
3. Something difficult (e.g. a given puzzle) or unpleasant (e.g. negative review, nasty letter).

   "Today's crossword is a stinker."

4. Something of poor quality.
5. Any of several species of large Antarctic petrels which feed on blubber and carrion and have an offensive odour, such as the giant fulmar.<!--Webster 1913-->