thick as pea soup

(as) thick as pea soup

Extremely thick or heavy. Usually said of conditions in the air, especially fog. We were just readying our boat when fog, thick as pea soup, rolled in and covered the entire harbor. The humidity in the air felt as thick as pea soup, and it caught in our throats as we trekked through the jungle.
See also: pea, soup, thick
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

*thick as pea soup

[of fog] very thick. (*Also: as ~.) This fog is as thick as pea soup. You can't see ten feet in front of you.
See also: pea, soup, thick
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
He might have been stick thin with an accent as thick as pea soup, but Rickitt was an instant sex symbol.