手发痒

Traditional (Taiwan): 手發癢

shǒufāyǎng ㄕㄡˇ ㄈㄚ ㄧㄤˇ

    • to be itching to do something
    • to be eager to get one's hands on something

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
hands itch
Meaning
To be itching to do something, to be eager to get one's hands on it. Informal.

Sources