What's this allusion called?

This allusion comes from a series of "Laughing Lin Lazy Woman Guang Ji":

"A lazy woman, daily diet, all by her husband, she only reached for clothes, to eat. One day, my husband was going to travel far away, and when he came back on the fifth day, he was afraid that he would be hungry, so he branded a big cake, wrapped it around the woman's neck for five days, and went out safely. I have starved to death for three days. The husband was shocked. When he entered the room, he saw that the cake around his neck only ate a piece near his mouth, but the cake still didn't move. "

It's just a joke, so there is no exact name.