How did two-part allegorical sayings come into being?

1, the god of wealth touches the skull-good things are coming;

2, flies fly into the salt shop-I don't know what to do;

3, the pig eight quit to break the cotton wool-no one, the goods are out of stock;

4, ate five or six little mice-scratching their hearts;

5, shit climbed up the cow and became a worm-the more you climb, the more disgusting you are;

6. Plant wheat after winter solstice-you can't catch up with the solar terms.

The origin of two-part allegorical sayings:

The name "Xiehouyu" first appeared in the Tang Dynasty. The so-called "Wu Hou of Zheng" (a kind of "Hou Hou" poem) has been mentioned in the biography of the old Tang Dynasty. However, as a language form and phenomenon, it appeared as early as the pre-Qin period.

Xiehouyu, also known as one-liners, can be regarded as a Chinese word game. Two-part allegorical saying is a kind of idioms, including idioms, proverbs, idioms and two-part allegorical saying.

Although ancient two-part allegorical sayings are rare in written records, they must have been circulated among the people, and many of them are still in use today.