鑽防空洞

Simplified: 钻防空洞

zuānfángkōngdòng ㄗㄨㄢ ㄈㄤˊ ㄎㄨㄥ ㄉㄨㄥˋ

    • to take cover to avoid trouble or criticism

Character by character

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
dive into an air-raid shelter
Meaning
To take cover somewhere that protects you, to avoid trouble or criticism. Mildly mocking.

Sources