- 乖乖儿的 guāiguāirde obediently(erhua form) behaving in an obedient or submissive manner; also used to describe a child who is being quiet and well-behaved
- 乖乖女 guāiguāinǚ good girlwell-behaved girl; a girl who is obedient or follows the rules
- 乖乖牌 guāiguāipái goody-goodya person who is exceptionally well-behaved, obedient, or follows all the rules; a good little boy or girl
- 乖乖的 guāiguāide obedientlyin an obedient or well-behaved manner