算後賬

Simplified: 算后账

suànhòuzhàng ㄙㄨㄢˋ ㄏㄡˋ ㄓㄤˋ

    • to settle old scores later
    • to hold someone to account for past wrongs

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
to settle accounts afterwards
Meaning
To settle old grudges or hold someone to account for past wrongs later on. Often a threat. Like 'settle the score'.

Sources