good as gold

Meaning

1. (as) good as gold

   behaving in a way that other people approve of

   The kids have been as good as gold all day.

In the movies · 1

• Just abuse him now and again and he'll be as good as gold.Sid and Nancy1986

From the same entry

• all that glitters is not gold
• a crock of gold
• have a heart of gold
• the streets are paved with gold
• strike gold
• worth your weight in gold