睏尾 [困－]

Jyutping kwan3 mei5
Pinyin kùn wěi

Definitions (Wiktionary)
  1. noun, Taiwanese-Hokkien
    reserve strength; stamina
    (syn.) 气尾, 後勁, 氣尾, 后劲
  2. noun, Taiwanese-Hokkien
    end of one's shift; end of one's work