兒皇帝

Simplified: 儿皇帝

érhuángdì ㄦˊ ㄏㄨㄤˊ ㄉㄧˋ

    • puppet ruler subservient to a foreign power

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
son emperor
Meaning
A ruler who holds power only with foreign backing and is subservient to it. It refers to Shi Jingtang, who called himself the Khitan ruler's 'son'. Contemptuous.

Sources