Otherkin

The belief that human beings can be born with non-human souls, past-life memories, or mindsets. Otherkin vary from Therianthropes in that they tend to believe they are beings of mythology; dragons, fairies, phoenix, kitsune, etc.

Therianthropy

Vampire

Vampirism

A condition where a collection of symptoms are controlled and/or alleviated by, either the practice of draining psychic energy/prana/life-force, or the ingestion of physical blood (animal and/or human).

Sanguinarian

An individual who requires the ingestion of physical blood in order to maintain a state of health, severity varies.

Psi-Vampire
A self-identified vampire who feeds on metaphysical energy. 

Psychic Vampire

A term to describe either a vampire who is psychic / can use psychic abilities, or a self-identified vampire who feeds on psychic / metaphysical energy.

Universal Feeder

A self-identified vampire that can feed on all sources, both physical and non-physical.

Hybrid

Vampire: Universal feeder, Blood/Energy feeder

Otherkin: Some otherkin describe themselves as a "hybrid" if they are two or more kintypes, or otherkin and vampire.

Blood-bond

A strong bond that develops between a donor and a vampire.

Donor

An individual who voluntarily feeds a vampire.

Source

Another name for a donor.

Black Swan

A term that includes not only donors, but lovers, friends, and family of an individual with vampirism, but do not have the condition themselves.