瞎猫碰到死老鼠
xiā​māo​pèng​dào​sǐ​lǎo​shǔ

a stroke of luck

  1. 瞎 xiā adjective
    blind
    blind; to become blind
  2. 猫 貓 māo noun
    cat
    cat; feline; any of several small carnivorous mammals commonly kept as pets or for catching mice
  3. 碰到 pèng​dào verb + particle
    to run into
    To meet someone unexpectedly; to bump into someone; to encounter or come across something
  4. 死 sǐ adjectivenoun
    dead
    (bound form) deceased; lifeless; deprived of life
  5. 老鼠 lǎo​shǔ noun
    mouse
    mouse; rat