(n.) A wingless, bloodsucking, hemipterous insect (Cimex Lectularius), sometimes infesting houses and especially beds.

barnacle bedbug blackmailer extortioner extortionist freeloader hanger-on harpy leech lounge lizard moocher mosquito parasite predator profiteer racketeer raptor scrounge scrounger shakedown artist shark spiv sponge sponger sucker tick vampire vulture wood tick