丢三落四 diūsānlàsì forgetful Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 他这人一向有点迷糊,经常丢三落四。 tā zhèi rén yīxiàng yǒudiǎn míhu, jīngcháng diūsānlàsì. He has always been a bit scatterbrained and often forgets things. Source: Dong Chinese Dictionary