铁饭碗

Traditional (Taiwan): 鐵飯碗

tiěfànwǎn ㄊㄧㄝˇ ㄈㄢˋ ㄨㄢˇ

    • secure employment (lit. iron rice bowl)

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
iron rice bowl
Meaning
A secure job that is hard to lose, traditionally a government or state-sector post. Neutral, sometimes slightly envious.

Sources