pea souper
/ˈpiːˌsuːpər/
noun
- A very thick, dense fog, often yellowish or gray, especially in cities or industrial areas.
- Driving in a pea-souper is extremely dangerous because visibility drops to near zero.
- The old London pea-souper was so thick you could barely see your hand in front of your face.
- The city used to have terrible pea-soupers before air quality laws were passed.
Synonyms