Who put forward the new meaning of zongzi?

The joke is as follows:

Rice and steamed bread fight in groups, and rice depends on many people. When you see the wrapped ones, you hit them. No one is spared, such as bean paste buns, sugar buns and steamed dumplings. Zongzi was forced into the corner, and in desperation, he pulled his clothes and shouted, see clearly, I am undercover! ! !

Later, Zongzi was extended to undercover. The meaning of spy.