拆牆腳 [－墙脚]

Jyutping caak3 coeng4 goek3
Pinyin chāi qiáng jiǎo

Definitions (Wiktionary)
  1. verb, figuratively
    to cut the ground from under someone's feet; to pull the rug out from under someone's feet
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）