资料来源 : pyDict

捕鼠动物,鬼鬼祟祟搜寻的人

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Mouser \Mous"er\, n.
   1. A cat that catches mice.

   2. One who pries about on the lookout for something.

资料来源 : WordNet®

mouser
     n : a cat proficient at mousing