A herb that is poisonous to Vampires. Made into drinks, so if they drink your blood they become paralysed and die. Also put into jewelry to prevent being compelled by them.
We're going to need another box of Vervain..
by Emma-pants February 06, 2010
In Vampire Diaries, vervain is a plant which can make vampires to eat their shit.
Heyy Elena, here take some vervain for your protection.. .
by lahorilion April 22, 2011