The bathroom, or toilet. Often in reference to a port-o-potty, or other disgusting place to leave a sloppy one.
We can't leave yet, Mom is still in the dumper.

After eating all those beans -- refried and pinto -- I am going to have to spend some quality time in the dumper.

I didn't want to lay all that cement, so I hid in from the forman, in the dumper.
by Master Alexander June 14, 2010
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A word used to offend a McDonald’s employee.
“Wow look at that dumper Behind the counter
by Dildojac December 31, 2020
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Charlie: Yo dead ass, Daniella you got no dumper
MarkAnthony: Word but dead ass you really dont
Potter: Nah but i know some bitches who got some ill ass dumpers
Mikey: Laura, do i have cackie in my dumper?
by SCWALLLEEEY November 7, 2009
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Anything bad, of poor-quality, disgusting, or bad.

Can be any part of speech, as the word "dumpers" does not have any rules attached to it.

Also be sure to notice that the pluralization of "dumpers" is inverted.
This show on ABC is dumpers!
Eww, cats are dumper.
Im going to take a dumpers.
Wow, look at that dumpers!
The way you do your homework is dumpers.
Nothing is more dumpers than that living room.
by Jean Descole January 13, 2011
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One who dumps, or shits, in someone else's pool or property.

Word from Big Black after someone shits in his and robs pool.
Some dumper just shit in my pool

There's a shit in the pool... DUMPER
by Tshaw1436 June 19, 2009
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A woman with a nice size chest, for example some double D's
Damn!! Look at shawty she got some dumpers.
by Young Nova October 18, 2008
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Jargon for an erratic and extravagant gambler.
The first night in Las Vegas he was wildly tossing around bets like a dumper.
by Paul Kusinitz January 24, 2003
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