pure as the driven snow
Morally unsullied, chaste, as in She's just sixteen and pure as the driven snow. This simile dates from the late 1500s, although driven, which means "carried by the wind into drifts," was occasionally omitted. It is heard less often today.
| a stew of meat, vegetables, potatoes, etc. |
| the offspring of a zebra and a donkey. |
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