vampicide

From vampire +‎ -icide.

vampicide (uncountable)

1. The act of killing a vampire.
   • 2019 May 8, Jemaine Clement, “The Trial” (18:29 from the start), in What We Do in the Shadows‎^[1], season 1, episode 7, spoken by Tilda (Tilda Swinton):

     “You have committed premeditated vampicide.” “Pass the judgement, Tilda.” “I pronounce these three guilty. Raise your fangs, all who agree.”