vermin

noun3

1. •
   Any of various common types of small insects or other animals which cause harm and annoyance.

   • The area was crawling with all sorts of vermin: fleas, lice, mice, and rats to name a few. Thus, we felt as if vermin were crawling over us.
2. •
   An animal that preys on game, such as a fox or a weasel.
3. •
   An obnoxious or mean and offensive person.

   • Bring these vermin to the Palace of Justice.