plural dumpers
chiefly US
1
: a person who leaves waste where it is not supposed to be left
The cops caught the illegal dumpers.
2
informal
: a state of failure
The economy is in the dumper.
His career has gone down the dumper. [=his career has been ruined]
Cite this Entry
“Dumper.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/dumper. Accessed 19 Jun. 2026.
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