Top Definition
During a multiple partner sexual scenario, if one female is not on birth control and another is, the designated cum dumpster is the one who gets the ejaculatory fluids.
Yeah man, in that three-some last night I was tagging Ashley almost the whole time but she wasn't on the pill, but Tina was the designated cum dumpster . I had to drop my load in her. Dear God, I hope she doesn't miss a dose. That'd be one ugly fucking baby.
by righteousavenger February 19, 2011

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