Eating jiaozi means "having sex at a younger age". This custom began in the early Ming Dynasty, and the original homonym of "Jiaozi" evolved into "jiaozi". Jiaozi is shaped like an ingot. People eat jiaozi in the Spring Festival and take the sound of "making money into treasure"; Jiaozi has stuffing, which is convenient for people to put all kinds of auspicious things into stuffing, so as to pin people's hopes for the new year.
Generally, jiaozi should be wrapped up before 12 o'clock in the evening of New Year's Eve and eaten at midnight. At this time, it is the beginning of the first day of the first lunar month. Eating jiaozi means "making friends at a younger age", and "zi" is homophonic with "dumpling", which means "happy reunion" and "good luck".
There are many legends about eating jiaozi in the New Year:
One is to commemorate Pangu's creation of the world and end the mixed state;
the second is to take its homonym with "muddy hoarding", which means "full hoarding of grain".
Extended information
On New Year's Eve, as soon as the clock strikes zero, we begin to eat jiaozi. Eat jiaozi just to get the meaning of "making friends at a younger age". This custom began in the early Ming Dynasty, and the original homonym of "Jiaozi" evolved into "jiaozi". Moreover, because the white-flour jiaozi is shaped like a silver ingot, a pot of pots on the table symbolizes the meaning of "making a fortune in the New Year, and the ingot rolls in".
jiaozi on New Year's Eve is an important part of the festival, so many rules and established customs are also stipulated. These customs are all to meet the needs of the atmosphere of the New Year.