吃哑巴亏

chī yǎ ba kuī

to be forced to suffer in silence

unable to speak of one's bitter suffering

吃

chī

variant of 吃[chi1]

哑

yǎ

mute; dumb; incapable of speech

巴

ba

the east of Sichuan and Chongqing Municipality

亏

kuī

to lose (money); to have a deficit