大熱倒灶 [－热－－]

Jyutping daai6 jit6 dou2 zou3
Pinyin dà rè dǎo zào

Definitions (CC-CANTO)
  1. the most popularly predicted outcome turns out not as predicted
Definitions (粵典–words.hk)
  1. 動詞
    指​本身​大家​睇​好​嘅​人​（​或者​物​）​冇​跑​出
    that the most popular choice did not win the race / was not selected
  2. 近義詞
    爆冷