Rúcǐ hòuyán de yāoqiú shízài lìngrén nányǐ jiēshòu.
Such a brazen demand is really hard to accept.
Tips
memory
Literally 'thick face' — same image as English 'thick-skinned.' If your 颜 (face) is 厚 (thick), insults bounce off and you have no shame.
usage
Often expanded to the chengyu 厚颜无耻 (hòuyánwúchǐ, 'thick-faced and shameless'). 厚颜 alone is more literary; the four-character form is what you'll hear in speech.
