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Vanilla Transmitted Infection: When one is in a non-monogamous lifestyle but still holds onto monogamous ways of thinking.
"We are swingers, but you can't sleep with my wife; she's mine."

Female 1: "How dare you sleep with him, I claimed him."
Female 2: "He's not your husband..."
Female 1: "Well.. no, but we have an agreement"
Female 2: "You've got a VTI hun."

"The girls of our swing community made a list, and I'm not on it. Well fuck all of them, they are ALL off my list because they are dirty sluts."
by rogue maverick August 29, 2013
2 0
Very Tan Individual.
Samantha is such a VTI.
by catluver January 15, 2011
1 0