生仔唔知仔心肝 (sang1 zai2 m4 zi1 zai2 sam1 gon1) — able to understand one's children as have given birth to them (slang) in Cantonese
sangˉ¹生zaiˊ²仔mˎ₄唔ziˉ¹知zaiˊ²仔samˉ¹心gonˉ¹肝Mandarin Pinyin: sheng1 zi3 n2 zhi1 zi3 xin1 gan1
Meaning of 生仔唔知仔心肝
nounable to understand one's children as have given birth to them (slang)