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A expulsion of foul smelling air and semen from the vaginal canal. the cum vart gets its rank smell from a mans semen that has been marinating inside the vagina for at least 6 hours.
johnny : "this morning i woke up and started to kiss lisa's vagina and she let out the worst smelling cum vart i have ever experienced in my life. it stank so bad that i vomited right there between her legs."
by 0099009976 January 19, 2008
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