bloodsucker

[ bluhd-suhk-er ]

/ ˈblʌdˌsʌk ər /

any animal that sucks blood, especially a leech.

an extortioner or usurer.

Origin of bloodsucker

Middle English word dating back to 1350–1400; see origin at blood, sucker

blood·suck·ing, adjective

A bloodsucking skill because, if done right, it means, in a business sense, never growing old.

The Stacks: How Leonard Chess Helped Make Muddy Waters |Alex Belth |August 2, 2014 |DAILY BEAST
It does push him toward drawing a caricature of his own, one of slathering, bloodsucking right-wingers.

In Defense of the British Worker |Peter Hoskin |July 14, 2011 |DAILY BEAST
This should not appear strange when it is considered that some animals harbor several thousand of the bloodsucking parasites.

Special Report on Diseases of Cattle |U.S. Department of Agriculture
If he had drowned thee, thou wouldst not have lived to bite my poor girl, like a bloodsucking vampire.

The Legend of Ulenspiegel, Vol. II (of 2) |Charles de Coster

Again, there are four things which like the bloodsucking horse-leech are always insatiable.

The Expositor's Bible: The Book of Proverbs |R. F. Horton

bloodsucker

/ (ˈblʌdˌsʌkə) /

an animal that sucks blood, esp a leech or mosquito

a person or thing that preys upon another person, esp by extorting money

bloodsucking, adjective