The protruding mouth is similar to the beak of a bird. The monkey's cheek is the gill on the monkey's mouth, which is used to hold food, so it is said that the cheeks on both sides are slightly bulging. What is reflected in the face is the high convex and thick cheeks, plus the prominent mouth, and the face is thin and looks like an exaggerated inverted triangle.

Interpretation:

The pronunciation of "sharp mouth and monkey cheeks" is jiān zuǐ hóu sāi, which means sharp mouth and thin cheeks. Describe people's ugly and vulgar appearance.

The idiom comes from the third episode of the novel The Scholars in the Qing Dynasty: "You, like a sharp-tongued monkey, should take a piss and take a look at yourself! No three no four, just want to eat swan fart. "

Extended data

Sharp-billed monkey's chin is pointed and its upper lip is pointed, which makes its mouth not straight and looks crooked. From the side, the mouth is prominent, which is similar to buck teeth. The nose is sharp as a hook, which is called an aquiline nose. Its cheekbones are prominent and visually obvious; The cheeks are really thin and fleshless, forming an inward concave shape. The whole face looks incongruous and funnel-shaped.

People with monkey cheeks are stubborn. As long as they want it, they will get it no matter how much they pay. When things are wrong, it is easy to become paranoid, and it is more difficult to communicate again, forming a withdrawn character.

References:

Baidu Encyclopedia-Jianzuihousai