Definitions by Mistress 9

IVS 

"IVS" is an acronym that stands for Indestructible Vagina Syndrome. This is the name given to a woman that can be kicked in the crotch and be unharmed.

*HYAH!*
"Ha! I just kicked your vagina!"

"I have IVS, therefore, I am unhurt."

"Oh, shi-"

IVS by Mistress 9 December 9, 2008