look up any word, like hipster:
 
1.
SV stands for Saggy Vagina. People with saggy vaginas are commonly called "SV's" or "SV Syndrome girls". Saggy Vaginas are unattractive and should be taken care of immediately. People who wear pants that poof out near the crotch area are also known as having "SV Syndrome."
Ya she totally has SV Syndrome!
by Peniis@GetVagina.com October 09, 2010