The probability that someone will obtain an STD if they sleep with you. The higher the V-score, the more probability they will contract an STD. The lower the V-score, the lower the probability they will contract an STD. Measured 0-10. 0 being a virgin 10 being Paris Hilton.
"Yo, I couldn't sleep with Trina. She has a V-score of like 9."
by Slept with Trina February 05, 2012