翻脸不认账

Traditional (Taiwan): 翻臉不認賬

fānliǎnbùrènzhàng ㄈㄢ ㄌㄧㄢˇ ㄅㄨˋ ㄖㄣˋ ㄓㄤˋ

    • to turn on someone and deny what one did or said
    • to renege

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
to turn one's face and not admit the debt
Meaning
To quickly deny what one did or said. Critical.

Sources