Goody-goody and Goody two-shoes

Goody-goody adjective - Affectedly or smugly good or self-righteous.

Goody two-shoes and goody-goody are semantically related in straight-laced topic. In some cases you can use "Goody two-shoes" instead the phrase "Goody-goody" as a noun or an adjective.

Goody-goody and goody two-shoes are semantically related in somebody smug and well-behaved topic. You can use "Goody-goody" instead the phrase "Goody two-shoes" as a noun or an adjective.