Definitions

chuài (literary) to gnaw; to eat ravenously
zuō (coll.) to suck

Etymology phono-semantic

mouth

Semantic: Phonetic:

About

The character is a phono-semantic compound composed of the mouth radical (kǒu) on the left, indicating a physical mouth-related action, and the phonetic element (zuì) on the right, which gives the pronunciation. Historically, it primarily denotes sucking, lapping up liquids, or biting, and frequently carries a secondary implication of eating voraciously, in a greedy and unrefined manner. The semantic range remains entirely physical and literal, describing the mechanics of ingestion or other mouth-based interactions without extending into abstract concepts. In literary usage, the meaning stays directly connected to the mouth radical, consistently referring to concrete oral actions.