膠皮飯碗

Simplified: 胶皮饭碗

jiāopífànwǎn ㄐㄧㄠ ㄆㄧˊ ㄈㄢˋ ㄨㄢˇ

    • very secure job that is hard to lose

Character by character

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
rubber rice bowl
Meaning
A very secure job that is hard to lose. Often said with a little envy.

Sources