vampiro

Ian Richard Hodgkinson (born May 31, 1967) is a Canadian professional wrestler better known by his ring name of Vampiro. He competed in Wrestling Society X until the company folded earlier this year, where he became the first WSX Champion. Hodgkinson is perhaps best known, in the United States, for his time with World Championship Wrestling between 1997 and 2001, where he held WCW World Tag Team Championship, along with The Great Muta.
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n. vampire

n. vampire, legendary creature believed to be a rejuvenated corpse who sucks people's blood at night

n. ghoul, vampire

v. exploit, use, take advantage of, selfishly make use of

= vampire.
Ex: Library users fall into 4 groups: (1) patrons, who are considerate, grateful and undemanding; (2) 'pests' -- the inconsiderate; (3) 'pirates' who steal, deface and mutilate library property and materials; (4) 'vampires' whose enquiries make excessive demands upon the librarian's time.