云里雾里 Origin — Chinese Character Wiki

yúnlǐwùlǐ

mystified

云雲 yún noun

cloud

cloud; any cloud-like mass of smoke, dust, or steam in the air
里裡 li

[infix]

(bound form) filler syllable used in certain four-character descriptive words or sounds
雾霧 wù noun

fog

fog; mist
里裡 li

[infix]

(bound form) filler syllable used in certain four-character descriptive words or sounds