(as) good as gold

(as) good as gold

1. Obedient and well-behaved. Sure, I'll baby-sit Cindy's kids tonight—they're as good as gold every time I watch them.
2. Authentic and legitimate. According to the curator, this painting is as good as gold.
See also: gold, good
Farlex Dictionary of Idioms.

*good as gold

Cliché very good. (Usually used to describe children. *Also: as ∼.) Mother: Thank you for taking care of Gretchen; I hope she hasn't been too much trouble. Grandmother: Not at all; she's been as good as gold. We knew that Daddy would not read us a bedtime story unless we behaved, so we tried to be good as gold.
See also: gold, good
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

good as gold, as

Completely genuine; also, well behaved. For example, Her credit is as good as gold, or The children were good as gold. With this alliterative idiom the initial as is sometimes dropped, and nearly always so when behavior is referred to. [Late 1600s]
See also: good
The American Heritage® Dictionary of Idioms by Christine Ammer.

good as gold

If a child is as good as gold, they behave very well. Both children have been as good as gold all afternooon. They were both in the playroom as good as gold.
See also: gold, good
Collins COBUILD Idioms Dictionary, 3rd ed.

as good as gold

extremely well-behaved.
See also: gold, good
Farlex Partner Idioms Dictionary

(as) good as ˈgold

(of children) very well-behaved: The children were good as gold. They sat quietly and read all afternoon.
See also: gold, good
Farlex Partner Idioms Dictionary

good as gold

Singularly well-behaved or authentic. This proverbial comparison has an ancient ring to it, but it dates only from the nineteenth century. Dickens used it several times (in The Old Curiosity Shop and A Christmas Carol) as did W. S. Gilbert in Patience (1881): “Gentle Jane was good as gold, She always did as she was told.”
See also: gold, good
The Dictionary of Clichés by Christine Ammer
See also:
  • good as gold
  • good as gold, as
  • as good as gold
  • be as good as gold
  • in the hope that
  • in (high) hopes that
  • in the hope
  • in the hope of
  • in the hope of something
  • a handful