Chiefly British Informal. pea soup(def 2).
Canadian Slang: Disparaging and Offensive. a contemptuous term used to refer to a French Canadian.
Origin of pea-souper
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for peasouper
Historical Examples of peasouper
I could tell you some chump-chilling tales about life on the box in a London peasouper.
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012