搖腦殼 [摇脑壳]

Jyutping jiu4 nou5 hok3
Pinyin yáo nǎo ké

Definitions (Wiktionary)
  1. verb, Xiang
    to shake one's head (to signal disagreement)
    (syn.) 搖頭, 摇头, 幌頭, 幌头