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1. A jug full of semen
2. A container full of semen
3. Japanese delicacy containing bull semen
4. A person who is lower than a container of semen... similar to a douchebag
1. "Oh my God, look at that cumjug!"
2. "Do you think this bottle would make a good cumjug?"
3. "I bet that girl could eat a lot of cumjug!"
4. "Fucking Billy is such a cumjug!"
by inventer o' cumjug April 05, 2009
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