bloodsucking
       adj 1: drawing blood from the body of another; "a plague of
              bloodsucking insects"
       2: 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" [syn: parasitic, parasitical,
           leechlike]