What does it mean to be full after eating steamed bread for the fourth time?

When you eat steamed bread, you will be full by the fourth time, which means: a person will eat steamed bread when he is hungry, but after eating the first three, he will be full, and by the fourth time.

The original sentence is: "You are full after eating the fourth steamed bread. Are you full because of the fourth steamed bread? "

This sentence is a joke about eating steamed bread, which comes from Little Guang Lin.

Xiao Ji is a collection of jokes by Cheng in Qing Dynasty. Also known as "Guang Ji of Zeng Xiaolin" and "Quan Ji of Zeng Xiaolin", it was written in the 25th year of Guangxu in Qing Dynasty (1899) without volume. The book is intended to ridicule all kinds of morbid worlds in society at that time and vent the author's resentment against the official world. The author has a lump on his chest, which is humorous and soothing.

Moreover, the content is different. Many novels in the book have strong narrative, complete story lines and vivid characters. The thieves, clients, quacks, county magistrates, governors, policemen and wives in the author's works are all lifelike, which constitutes a genre painting of the late Qing society.