老襯底 (lou5 can3 dai2) — a fool; a naïve person who can be easily deceived / tricked [colloquial] in Cantonese
louˏ₅老can˗₃襯daiˊ²底简 老衬底
Mandarin Pinyin: lao3 chen4 di3
Meaning of 老襯底
nouna fool; a naïve person who can be easily deceived / tricked [colloquial]