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To have sex in the back seat of a car. Usually, cheap, hot, tawdry, sweaty, teenage sex done in a hurry when you have your parents' car and the back seats are, of course, vinyl.
"I had to have Jenny home by 10, so all we had time to do was park behind the Circle K and vinylize"

sex quickie bumping uglies sexing intercourse
by Holden_Magroin January 08, 2011
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