'Mango mango' refers to the viral 2023 TikTok recipe — popularised by creator Kiki Pang — for a chilled mango pudding-style drink layered with sago and mango chunks, named after the Hong Kong dessert chain Hui Lau Shan's iconic 'mango mango' menu. If your teen makes it or talks about it, they are following a food trend. Healthy, wholesome, no concerns.