凹凸曼那个小怪兽小怪兽那个凹凸曼
[āo tū màn nèi gè xiăo guài shòu xiăo guài shòu nèi gè āo tū màn]
It refers to characters from childhood cartoon series: AOTUMAN and the little monster. It is used here with fond nostalgia of the youth and childhood innocence that comes back through memories of watching these programs, expressing a playful and carefree mood.