南箕北斗

nánjīběidǒu ㄋㄢˊ ㄐㄧ ㄅㄟˇ ㄉㄡˇ

    • lit. the Winnowing Basket in the southern sky, and the Big Dipper in the north (idiom)
    • fig. sth which, despite its name, is of no practical use

Character by character

Sources