A man cave, mancave, or manspace, and less commonly a manland or mantuary is a male retreat or sanctuary in a home, such as a specially equipped garage, spare bedroom, media room, den, bas…A man cave, mancave, or manspace, and less commonly a manland or mantuary is a male retreat or sanctuary in a home, such as a specially equipped garage, spare bedroom, media room, den, basement, or tree house. The term "man cave" describes an area in the home where a man can do as he pleases in a masculine space.