下绊子

Traditional (Taiwan): 下絆子

xiàbànzi ㄒㄧㄚˋ ㄅㄢˋ ˙ㄗ

    • to trip someone up
    • to obstruct someone secretly

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
set a tripping foot
Meaning
To trip someone up or secretly obstruct them. Critical.

Sources