What does "Zongzi" often appear in the post bar mean?

It comes from a joke that Chris Lee said when chatting on Sina: Zongzi in the joke is a spy, and was later used by Corn Man to describe the spies of other super girl fans. ...

The top three fans of Super Girl Chengdu are corn, bean jelly and box lunch. Fans of these three contestants spontaneously formed a small group called "Chengdu Snack Group". For those who destroy the unity atmosphere of snack groups, they are named "Zongzi". Chris Lee: Thank you. You're completely backwards. Bun family and rice family fight, fried rice with eggs, etc. And when they beat the burrito out of the water and forced Zongzi into the corner, Zongzi took off his coat and called me a spy!