A human who exists for the purpose of providing male mammels with a life into which it can watch its semen pour. Key elements of a cum dumpster are that it must feel degraded and disgusted with itself even though it orgasms while its user spurts hot seed into it. All females and many males are cum dumpsters.
I wish I could stop openning my mouth and allowing my wife to watch me serve as a cum dumpster, taking the hot stream of sperm which poured out of her cunt after she had been used as a cum dumpster by her brother and his friends. I was a cum dumpster's cum dumpster, and I hated myself for enjoying the used loads I ate.
by load holder March 22, 2012

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Any person who needs many different men to put semen in her snatch or her mouth. She generally tried to accomplish this by stealing other peoples men by pretending to be their friend.
That Christy girl stole my husband and is now his cum dumpster.
by IhateGrigsby October 24, 2011

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A word pertaining to a person (namely female) who spends most of his/her time welcoming load afer load of semen into his/her multitude of perforations.
Guy 1: Dude, that girl Karah is such a cum dumpster.

Guy 2: I know bro! She took seven loads before finally leaving my house last night!
by PewPewLazrBeams November 03, 2010

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The Urban Dictionary T-Shirt

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Big whore. Still can't count the amount of partners she's had in the last 10 years on both hands and feet put together. You can tell who they are. There usually the one's asking you to by them a drink at the local dive on a Friday night. The woman that offers to by you a drink probably has had it with her cum dumpster friends getting her in brawls over Hoe action.
Girl 1: I can believe you left him. He's so buff. What happened?
Girl 2: After I found out he'd been with that cum dumpster I couldn't stand the sight of him any more. She's been pounded by more men than Debbie Dallas.

Girl 1: Wow your pissed
Girl 2: He'll get his when he's broke and she leaves him for the next fool with a little bank to support her.
by SpeaktheTruthWanker January 13, 2010

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1. A female who lets all men have easy access to the cat from down under.

2. See Paris Hilton
Mike: Hey what are you doing tonight?
Joe: I don't know, probably gonna watch porn.
Mike: Dude, you don't need to do that. Hey come over to my place, I got us a cum dumpster for the night.
Joe: Sweet.
by Killthepond December 10, 2005

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A rank vagina overflowing with various men's cum.
Another word for slut.
Omg Jessica is such a cum dumpster!
by therealpseudosaurus July 28, 2016

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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A woman/girl who takes an exceptional amount of cum in every hole from pretty much any man who asks.
Emily is way to hot to be a cum dumpster but she let the entire sports team bust there loads in her so she totally is one now.
by Micheal O'neil April 25, 2016

The Urban Dictionary Mug

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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