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Related to summer complaint: Campylobacter
euphemism, obsolete Any severe gastrointestinal infection, but especially food poisoning or cholera, typically contracted by children in the summertime. Mary has a bit of the summer complaint, so she has taken to bed for the rest of the week. Before personal hygiene and food safety practices became commonplace, children became ill and died from what adults rather flippantly called summer complaints.
See also: summer
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
n. diarrhea, especially that experienced in the summer. I’ve got a touch of the summer complaint.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.