dumper
US /ˈdʌm.pɚ/
UK /ˈdʌm.pɚ/

1.
a person or thing that dumps something
:
•
The company was fined for being an illegal waste dumper.
•
He was known as a heartless dumper of girlfriends.
2.
a large truck or machine used for transporting and tipping bulk materials, such as earth or rubble
:
•
The construction site had several large dumpers moving earth.
•
The dumper tipped its load of gravel onto the road.