1. a worm-like creature that lives in water and sucks blood from other animals
2. a person who depends on others for support without giving anything in return
Usage: informal

1. to attach oneself to someone in order to gain advantage or benefit

Examples

• The leech attached itself to the swimmer’s leg.
• Doctors once used leeches for medical treatments.
• He’s such a leech, always borrowing money but never paying it back.
• She accused him of being a leech who lived off his wealthy friends.
• The small company tried to leech customers from its larger competitor.
• Don’t leech onto me at the party – I want to meet new people.
• Leeches can be found in freshwater ponds and streams.