烏鴉嘴 [乌鸦－]

Jyutping wu1 aa1 zeoi2
Pinyin wū yā zuǐ

Definitions (CC-CEDICT)
  1. crow's beak
  2. (fig.) person who makes an inauspicious remark
Definitions (Wiktionary)
  1. noun, figuratively
    boring person who constantly caws about disasters; vocal pessimist; doomsayer; croaker; jinx
    (syn.) 烏鴉嘴, 烏鴉口, 烏鴉喙