掃乾淨 (sou3 gon1 zeng6) — to sweep clean or dust clean in Cantonese
sou˗₃掃gonˉ¹乾zengˍ₆淨简 扫干净
Mandarin Pinyin: sao3 gan1 jing4
Meaning of 掃乾淨
nounto sweep clean or dust clean
nounto sweep / dust clean [written and colloquial]; to finish up eating everything [colloquial]