沒頭蒼蠅

Simplified: 没头苍蝇

méitóucāngying ㄇㄟˊ ㄊㄡˊ ㄘㄤ ˙ㄧㄥ

    • someone with no plan who does not know what to do
    • headless chicken

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
headless fly
Meaning
Someone with no plan who does not know what to do. Mildly mocking; like "headless chicken".

Sources