O [---]

Jyutping ou1 saai3 zeoi2
Pinyin o shài zuǐ

Definitions (Kaifangcidian)
  1. 張口結舌 – 张口结舌
  2. 啞口無言 – 哑口无言
  3. 瞠目結舌 – 瞠目结舌
Examples (粵典–words.hk)
  1. Cantonese
    我哋吓到好似见到外星人噉O晒嘴。
    我哋嚇到好似見到外星人噉O晒嘴。
    ngo5 dei6 haak3 dou3 hou2 ci5 gin3 dou2 ngoi6 sing1 jan4 gam2 ou1 saai3 zeoi2.
    • We were shocked with mouths agape as if we had seen aliens.