I'm still clumsy. Clumsy mouth and tongue. Of being inarticulate.

Source: Uncle Long River by Liu Houming: "No, no, I'm all thumbs."

Stupid mouth and cheeks [Zhu buk ǒ ubè n sā i]

Clumsy mouth and tongue. Of being inarticulate.

Source: Qing Xuanding's "Continued Night Rain in Qiu Guang" Volume 3: "On words, a scholar should do it; Stupid mouth and poor tongue, the true nature of farmers. "

to cast pearls before swine

People who laugh at the listener don't understand what the other person is saying. Accustomed to sneer at the speaker without looking at the object.

Source: Han Morong's Theory of Reason and Confusion: "Gongmingyi is the exercise of Niu Qingjiao; Eat as usual; Non-cattle do not smell; Not suitable for his ears. "

Niuguquan [Duninu gǔ Juan]

Metaphor is to reason or talk to unreasonable people. It often implies futility or satirizes each other's stupidity. With "casting pearls before swine".

Source: "Zhuangzi's Theory of Everything" "He is unclear, so he ends up with a firm ignorance." Jin Guoxiang's note: "He doesn't know cows yet, so he doesn't know his own way."

Chickens talk to ducks.

"Chickens talk to ducks" literally means that chickens talk to ducks, and the language is unreasonable. This is a neutral word used to describe two people who can't communicate with each other.

Sentence: Talking to him is like talking to a duck.