What is the stem of plum?

Youyoumei is an advertising word endorsed by Yang Mi in his early years.

This stem comes from Yang Mi's magical repetitive advertising words for Liu. Earlier, Yang Mi endorsed Liu, and the advertising slogan was "Are you okay, are you okay, are you okay, eat Liu if you are okay?" Because it is so magical and deeply rooted in people's hearts, it has become the mantra of contemporary netizens.

Terrier meaning:

The original meaning of this stalk is an advertising language. After being spoofed by netizens, it becomes a strange word, which is synonymous with "acid", or when you see something strange and incomprehensible happening on the Internet, you can make a strange evaluation and get full marks for ridicule.