人情紙咁薄 (jan4 cing4 zi2 gam3 bok6) — human decency is thin like paper (i.e., don't expect decency from people) in Cantonese
janˎ₄人cingˎ₄情ziˊ²紙gam˗₃咁bokˍ₆薄简 人情纸咁薄
Mandarin Pinyin: ren2 qing2 zhi3 han2 bao2
Meaning of 人情紙咁薄
nounhuman decency is thin like paper (i.e., don't expect decency from people)
nounLiteral/Direct translation: Favor is as thin as a piece of paper – Describes the situation where a person is not getting any favor from the person he/she has asked.