翻手作云覆手雨

Traditional (Taiwan): 翻手作雲覆手雨

fānshǒuzuòyúnfùshǒuyǔ ㄈㄢ ㄕㄡˇ ㄗㄨㄛˋ ㄩㄣˊ ㄈㄨˋ ㄕㄡˇ ㄩˇ

    • fickle and changeable person
    • weathercock

Character by character

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
turn the hand over to make clouds, turn it back for rain
Meaning
A variant of 翻手为云覆手雨: someone fickle and changeable.

Sources