無風三尺浪 (mou4 fung1 saam1 cek3 long6) — Sth. happens out of the blue in Cantonese
mouˎ₄無fungˉ¹風saamˉ¹三cek˗₃尺longˍ₆浪简 无风三尺浪
Mandarin Pinyin: wu2 feng1 san1 chi3 lang4
Meaning of 無風三尺浪
nounSth. happens out of the blue
noun(Cantonese analogy - figurative meaning) something happen suddenly without any forewarning