Goody-goody

Idiom: "goody-goody"

Definition:

someone who is self-righteously or smugly good

Examples:

1) Goody-goodies love to compliment their teachers on their teaching.

2) Sam is a real goody-goody.  He always does the boss’ laundry.


中文解释：http://www.youzienglish.com/main/idiom_of_the_day/goody_goody/cn/