Monkey Sai Lei is a homonym of "so sharp" (so fierce) in Cantonese. After the image of "Kangkang", the mascot of 20 16 Spring Festival Evening, was released, it was called "monkey's cheek thunder" by netizens, which led to another teasing meaning.
The monkey Xisen means very happy.
Similarly, there are monkeys who love skin and so on. The monkey means "good".