砍腦殼 [－脑壳]

Jyutping ham2 nou5 hok3
Pinyin kǎn nǎo ké

Definitions (Wiktionary)
  1. verb, Guiyang, Liuzhou, Mandarin, Sichuanese, Yangzhou
    to behead; to decapitate
  2. verb, Sichuanese, humorous
    to have a haircut; to get a haircut