What does Changchun Blue Code mean?

"Changchun Blue Code Big Brother" refers to Tik Tok blogger whose account number is "Changchun Good Life".

Bloggers use "blue horse" to represent themselves and often share some interesting things related to Tik Tok Changchun.

Because the video posted by this blogger often appears on Tik Tok's recommendation page, it is well known by many netizens.