dumper
Concise Oxford English Dictionary © 2008 Oxford University Press:
dumper/ˈdʌmpə(r)/
▶noun
- 1 a person or thing that dumps something.
- 2 (also dumper truck) Brit. a truck with a body that tilts or opens at the back for unloading.
- 3 N. Amer. a large metal container for rubbish.
- 4 (the dumper) informal a state of being unwanted.
'dumper' also found in these Oxford entries:

