be (as) pure as the driven snow

To be virtuous and/or chaste. The bride looked as pure as the driven snow in her gown. Kate would never cheat on an exam—she's pure as the driven snow.

Common Names:

Name	Pronounced	Usage
Lange	['læŋə]
RasİM	-	Turkish, Azerbaijani
SeyyİT	-	Turkish
Efrosyni	ef-ro-SEE-nee	Greek
Riko	ṙee-ko	Japanese
Itzel	-	Native American, Mayan