衝昏頭腦 [冲－头脑]

Jyutping cung1 fan1 tau4 nou5
Pinyin chōng hūn tóu nǎo

Definitions (CC-CEDICT)
  1. lit. to be muddled in the brain (idiom); fig. excited and unable to act rationally
  2. to go to one's head