Related Clues:

• One who's a real sucker
• Parasitic worm
• Borrow permanently
• Bloodletting critter
• Blood-sucking parasite
• Be a human sponge
• Sponge (off of)
• Cosmo, to Jerry
• Live like a parasite
• Blood-loving worm
• Parasitic creature
• Be a freeloader
• It's a real sucker
• Annelid used in hirudotherapy
• It's a bleedin' worm