pea-souper

Meaning

Noun

• A dense, yellowish fog, often mixed with smoke; a pea-soup fog, a smog.
• A French-Canadian person, especially a Francophone from the province of Québec.

Origin

• From pea soup + -er; sense 1 (“dense, yellowish fog”) is from the appearance of the fog, while sense 2 (“French-Canadian person”) may be from the prevalence of pea soup in French cuisine: compare pea soup.