a room or other area in a home that is primarily a male sanctuary, designed and furnished to accommodate the man's recreational activities, hobbies, etc.: The basement is my husband's man cave—during football season, you can usually find him down there watching the game with his buddies on the big-screen TV.
Origin of man cave
First recorded in 1990–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for man cave
These were his official couch potato, crumb-magnet, man-cave leggings of shame in all their People of Wal-Mart splendor.
ASELTON: Spunk, man-cave, toilet-kitchen… What were some of your favorite things on the show to come out of improvising?‘The League’ Roundtable: The Cast Dishes on the Funniest Show You’re Not Watching|Marlow Stern|November 19, 2013|DAILY BEAST