A female who allows multiple men to cum inside her multiple times.
Did you hear about that girl over there cumdumpstering the other day?
by Cowgirl12244 September 17, 2015
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1. A woman whos mouth is used by several men as a trash can for cum (sperm).

2. A woman with a slut reputation, as well as a good cocksucker reputation.

That girl is a great cumdumpster, I took her on after the other one was finished.
by DeanNJ March 20, 2007
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adj.
1. A young woman who is such a whore that she will fuck anyone and everyone and everywhere she can whenever she can, even on a fresh grave.
2. she also enjoys swallowing semen
guy 1. dude you fucked that stephanie lebar chick last night?

guy 2. yeah

guy 1. man that girl is such a cumdumpster you better get your shit checked out.

guy 2. fuck!!!
by mermaid_face August 20, 2009
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One, usually female, although not necessarily, who is a receptacle for semen.
Look at Michelle, she's just a filthy cumdumpster!!!
by Aunt/Aunteater January 14, 2004
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a slut; some one who is used buy men to dump their cum
cumdumpster
by TOTESMAGOTES222 September 19, 2010
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