口くち脇わき

noun

edges of the mouth; corners of the mouth

Refers to the area around the sides of the mouth, often used in descriptions of facial expressions or when food or drink escapes.

• 笑わらうと口くち脇わきにえくぼができる。

  When she smiles, dimples appear at the corners of her mouth.

• スープが口くち脇わきからこぼれた。

  Soup dribbled from the edge of his mouth.