freeloader
noun
- one who takes too much of something without giving anything in return
Wiktionary
Pronunciation: /ˈfɹiːləʊdə(ɹ)/ / /ˈfɹiloʊdɚ/
noun
Etymology: From free + load + -er, originally US 1930s.
- One who does not contribute or pay appropriately; one who gets a free ride, etc. without paying a fair share.
- A person who takes expired unsold merchandise from the back of supermarket premises.