leech - noun

carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end

a follower who hangs around a host (without benefit to the host) in hope of gain or advantage

leech - verb

• draw blood

leech - thesaurus

bleed   bloodsucker   hirudinean   parasite   phlebotomise   phlebotomize   sponge   sponger