拆台子

Traditional (Taiwan): 拆臺子

chāitáizi ㄔㄞ ㄊㄞˊ ˙ㄗ

    • to sabotage something
    • to bring down a rival

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
pull apart the stage
Meaning
To sabotage something so that it can't go smoothly, or to bring down a rival. It is critical.

Sources