- 碎嘴子 suìzuǐzi garrulous; long-windedto prattle on or nag incessantly
- 对嘴子 duìzuǐzi retort(regional) a sharp retort or a verbal put-down; a way of speaking back that is pointed or confrontational
- 瘪嘴子 biězuǐzi person with sunken cheeks(colloquial) a person with sunken cheeks, usually caused by the loss of teeth
- 豁嘴子 huōzuǐzi harelipa congenital split in the upper lip; also used to refer to a person with this condition