詐唔知 (zaa3 m4 zi1) — act like one doesn't know; act ignorant in Cantonese
zaa˗₃詐mˎ₄唔ziˉ¹知简 诈唔知
Mandarin Pinyin: zha4 wu2 zhi1
Meaning of 詐唔知
nounact like one doesn't know; act ignorant
nounTo pretend he/she don't know about something; to pretend to be ignorant