萌阿浪
[méng ā làng]
'Cute and Rebellious' ('浪'(Lang) in Mandarin, which literally means wave, but also refers to somebody being unruly or rebellious.) combines the cuteness and playfulness represented by '萌 (kawaii/moe)' culture alongside some sort of nonconformity spirit indicated by Lang here. The whole nickname conveys an image of someone playful, lively yet unique, unconventional, showing that he enjoys being carefree or wild in character while maintaining an endearing, lovable manner.