midsummer madness

English

Noun

midsummer madness (uncountable)

1. Madness attributable to the heat of summer, or to the midsummer moon.
   • c. 1601–1602 (date written), William Shakespeare, “Twelfe Night, or What You Will”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act III, scene iv]:

     Why this is very midsummer madness.

   • 1959, Isaac Asimov, “All the Troubles of the World”, in Nine Tomorrows: Tales of the Near Future, →OCLC, page 160:

     "Madness. Midsummer madness," muttered Gulliman.