- wassail: Norse, a salutation or toast; "be in good health". Also: Norse, "drink, revel, party".
Wassail is the last frenzy a vampire experiences - the one that causes Humanity to drop from 1 to 0 and puts the vampire entirely and permanently under control of the Beast. Once a vampire enters Wassail, he is lost forever.
- Sins of the Blood, p. 9, 17-24