This sentence should be read in conjunction with the original text. The cause of the matter was that Yuanyang and Sister Feng played a trick on Grandma Liu and deliberately gave her a small pigeon egg. Grandma Liu said: "Old Liu, Old Liu, how much food you eat." "It's as big as a cow, but it won't lift its head when eating an old sow." She thought that someone just gave her a pigeon egg because it was too small for her to eat. After saying this, she puffed up her cheeks and said nothing, so everyone laughed at her. The original text is: Sister Feng picked a bowl of pigeon eggs and placed them on Grandma Liu's table. When Jia Mu said "please", Grandma Liu stood up and said loudly: "Old Liu, Old Liu, he eats as much as a cow. He can eat an old sow without raising his head." But she puffed up her cheeks and remained silent. Everyone was stunned at first, and then when they heard it, they burst out laughing.