挤牙缝

Traditional (Taiwan): 擠牙縫

jǐyáfèng ㄐㄧˇ ㄧㄚˊ ㄈㄥˋ

    • to scrimp and save even more in hard times
    • to pinch pennies

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
squeeze out of the gaps in the teeth
Meaning
To scrimp and save even more when life is already hard.

Sources