"Malling group" is "몰링족"(mol-ling-jok) in Korean.
The people who enjoy the entertainments such as shopping in one space. Metropolitan area such as the Seoul in South Korea, where they opened one after another suburban shopping mall, and enjoy shopping and watching movies, and spend a time of leisure in one of the facility, in other words it also means to the people who born that area. Collectively we also have word such as shoping culture (몰링문화).