From Longman Dictionary of Contemporary Englishbloodsuckerblood‧suck‧er /ˈblʌdˌsʌkə $ -ər/ noun [countable] 1 HBIa creature that sucks blood from the bodies of other animals2 informalBAD PERSON someone who always uses other people’s money or help – used to show disapproval
Examples from the Corpus
bloodsucker• Many are bloodsuckers, often of fish or amphibians.• To help keep these bold bloodsuckers at bay we rubbed wet salt on our boots. 