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]
Words nearby good as gold, as
good,
good afternoon,
good and,
good around,
good as done, as,
good as gold, as,
good as one's word, as,
good as, as,
good behavior,
good book,
good buddy