vampire

/ˈvæmpaɪər/
noun
  1. A dead person who rises from the grave at night to drink the blood of living people, often described in stories and movies.
    • She dressed as a vampire for Halloween with fake fangs and a black cape.
    • The old castle was said to be haunted by a vampire.
    • In the movie, the vampire only comes out after sunset.
  2. A person who takes advantage of others, especially by using their time, energy, or money without giving anything back.
    • Some people call loan sharks vampires because they charge extremely high interest.
    • He felt like a vampire, draining his friends' patience with constant complaints.
    • My boss is a real vampire, always asking me to work late without extra pay.
Synonyms