In the event of a 'mate' pulling a girl, the 'cupboarder' will recieve notification of the couple's ETA, then promptly strip, conceal themselves in the wardrobe of the 'mate' and wait for the couples arrival. At some crucial moment, with physical activity fully underway, the 'mate' signals for the 'cupboarder' to make their presence felt.
Creating a literal or metaphorical closed off space, such as a cupboard. You do not have to be physically alone, the use of headphones may be appropriate but not necessary and can be done anywhere.
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".