喝墨水

hēmòshuǐ ㄏㄜ ㄇㄛˋ ㄕㄨㄟˇ

    • to go to school
    • to be educated

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
drink ink
Meaning
To go to school and study, or to be educated. Often used jokingly, e.g. of someone with some learning.

Sources