划框框

huàkuàngkuang ㄏㄨㄚˋ ㄎㄨㄤˋ ˙ㄎㄨㄤ

    • to set fixed rules and limits in advance
    • to allow no going beyond them

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
draw boxes
Meaning
To set fixed rules and limits beforehand and allow no going beyond them. Usually critical.

Sources