I chanced on this expression while reading a book by David Crystal. In a chapter dedicated to words that have disappeared from the English language, he mentions this gem in Samuel Johnson's Dictionary:
A curtain-lecture was "a reproof given by a wife to her husband in bed".
I had imagined the phrase referred to the drawing of the bedroom curtains at night. However, World Wide Words tells me that it derived from the four poster bed with its canopy and curtains.
Is there a more modern day <> equivalent of this phrase? Because speaking as a once married woman, I confess I used to choose bedtime to have these "in-depth discussions" with my ex (and even today with my current boyfriend).
Failing that, I'd also appreciate any amusing and witty neologisms. Thanks very!
Image: A Curtaine Lecture by Thomas Heywood. London, 1637. The text says the following
When wives preach, tis not in the Husbands power to have their lectures end within an hower. If Hee with patience stay till shee have donn. Shee’l not conclude till twyce the glass Hee runn.