威也吊燈籠 [－－－灯笼]

Jyutping wai1 jaa2 diu3 dang1 lung4
Pinyin wēi yě diào dēng lóng

Definitions (粵典–words.hk)
  1. 語句
    非常​小心​做事​，​完全​唔​出錯
    to do thing extremely carefully with no mistakes