Evidence can be found in many ancient prose, such as a sentence in Zuo Zhuan: "Eat jade, then forget it." It means "feed him delicious food and he will never forget it until he dies." "Bah" here means "hello" and "hello".

In addition, the word "Pei" appeared in A Dream of Red Mansions. For example, Lin Daiyu said to the maids, "All right, give me that snack, don't feed me bite by bite, and let everyone wait." "Bah" here also means "hello".

Generally speaking, the meaning of "spit" in ancient Chinese is more inclined to "feed" and "feed" than to "eat" or "contain in the mouth" directly.