Mann of the Haus is a German term for a man who is responsible for the management and upkeep of a house. The term HERR, which is a four letter word, is used to refer to a man in German. Therefore, Mann of the Haus can be translated to mean 'man of the house' in English. This term is often used to refer to a man who is the head of the household and is responsible for the maintenance and upkeep of the house.