Definition of pea-soupy:
(n) :
(cooking) A thick soup made with dried peas (often split peas) and various other ingredients.
(n) :
(slang) Thick fog.
(n) :
A greyish green or dull chartreuse colour, like the colour of pea soup.
(adj) :
Of the color of pea soup (greyish green or dull chartreuse).
(n) :
(countable, slang, ethnic slur) A French or French Canadian person.