唾面自干

tuò miàn zì gān

to be spat on in the face and let it dry by itself, not wiping it off (idiom); to turn the other cheek

to drain the cup of humiliation

唾

tuò

saliva

面

miàn

variant of 麵|面[mian4]

自

zì

(bound form) self; oneself

干

gān

(bound form) to have to do with; to concern oneself with