披肝沥胆 (披肝瀝膽) pī gān lì dǎn

pī gān lì dǎn set phrase to open one's liver and drip gall; wholehearted loyalty
Domain: Idiom 成语
Notes: (CC-CEDICT '披肝瀝膽'; Guoyu '披肝瀝膽')