Dictionary.com
definitions

male menopause

noun
  1. a malaise that allegedly affects men in middle age and is said to be responsible for periods of emotional upset and uncharacteristic behavior.

Origin of male menopause

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for male menopause

male menopause

noun
  1. a period in a man's later middle age in which he may experience an identity crisis as he feels age overtake his sexual powers
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