Monkey Sai Lei is a transliteration of "Niubi" in Cantonese (namely "Sharp" in Cantonese). It comes from a post of a post-90 s woman showing off her photos and looking for a boyfriend on the Internet, which attracted many netizens' ridicule. Monkey Sai Lei refers to this China woman, and also refers to this incident in general.
After the image of "Kangkang", the mascot of 20 16 Spring Festival Evening, was announced, it was called "monkey's cheek thunder" by netizens because of its two spherical protrusions on the cheeks, which extended another meaning of teasing.