as good as gold


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Encyclopedia.

(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

as good as gold

extremely well-behaved.
See also: gold, good