金字招牌

jīnzìzhāopai ㄐㄧㄣ ㄗˋ ㄓㄠ ˙ㄆㄞ

    • trusted reputation
    • famous name, sometimes traded on by others

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
gold-lettered shop sign
Meaning
A reputation or good name that people trust. Approving, but can also mean someone trading on a famous name.

Sources