打醒十二分精神 (daa2 seng2 sap6 ji6 fan1 zing1 san4) — to be extremely alert (120% awake) in Cantonese
daaˊ²打sengˊ²醒sapˍ₆十jiˍ₆二fanˉ¹分zingˉ¹精sanˎ₄神Mandarin Pinyin: da3 xing3 shi2 er4 fen1 jing1 shen2
Meaning of 打醒十二分精神
nounto be extremely alert (120% awake)
nounstay fully alert (slang)