西 [---]

Jyutping aa3 sai1 baa1
Pinyin ā xī ba

Definitions (Wiktionary)
  1. intj, neologism, slang
    fuck

阿西吧 [---]

Jyutping
Pinyin ā xī ba

Definitions (CC-CEDICT)
  1. aw, fuck! (loanword from Korean 아! 씨발!)