吃祖宗飯

Simplified: 吃祖宗饭

chīzǔzongfàn ㄔ ㄗㄨˇ ˙ㄗㄨㄥ ㄈㄢˋ

    • to live off an inheritance without ambition

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
eat the ancestors' rice
Meaning
To live off an inheritance, lacking ambition to build anything. Critical.

Sources