奧客 [奥－]

Jyutping ou3 haak3
Pinyin ào kè

Definitions (CC-CEDICT)
  1. (coll.) (Tw) troublesome customer; obnoxious guest (from Taiwanese 漚客, Tai-lo pr. [àu-kheh])
Definitions (Wiktionary)
  1. noun, Taiwan
    bad customer