击鼓申冤 (擊鼓申冤) jī gǔ shēn yuān

jī gǔ shēn yuān set phrase to strike a drum at an official's door
Domain: Idiom 成语
Notes: In case of a grievance (Guoyu '擊鼓申冤'; Mathews 1931 '擊鼓罵冤', p. 63)