民脂民膏

mín zhī mín gāo

ㄇㄧㄣˊ ㄓㄇㄧㄣˊ ㄍㄠ

1the people's blood, sweat and tears

2lit. the fat and wealth of the people (idiom); the nation's hard-won wealth (esp. as an object of unscrupulous exploitation)