bloodsucking(s = adj.all) leechlike, parasitic, parasitical - of plants or persons; having the nature or habits of a parasite or leech; living off another; "a wealthy class parasitic upon the labor of the masses"; "parasitic vines that strangle the trees"; "bloodsucking blackmailer"; "his indolent leechlike existence"
drawing blood from the body of another; as, a plague of bloodsucking insects. [WordNet 1.5]
having the nature or habits of a parasite or leech; living off another; -- of plants or persons; as, a bloodsucking blackmailer; bloodsucking lawyers. [WordNet 1.5]