打嘴

1. • to slap sb's face
2. • to slap one's own face
3. • fig. to fail to live up to a boast

Character by character

• 打(dǎ)a semantically light, transitive verb that is combined with various grammatical objects to form compound verbs and verb-object phrases with a diverse range of meanings
• 嘴(zuǐ)mouth