pea soup

Short definition from Wiktionary

Noun

1. 1
   A thick soup made with dried peas (often split peas) and various other ingredients.
2. 2
   A French or French Canadian person.
3. 3
   Thick fog.
4. 4
   A greyish green or dull chartreuse colour, like the colour of pea soup.

Adjective

1. 1
   Of the color of pea soup (greyish green or dull chartreuse).
2. 2
   Alternative form of pea soup.