南箕北斗 [－－－－]

Jyutping naam4 gei1 bak1 dau2
Pinyin nán jī běi dǒu

Definitions (CC-CEDICT)
  1. lit. the Winnowing Basket in the southern sky, and the Big Dipper in the north (idiom)
  2. fig. sth which, despite its name, is of no practical use