When the vagina leaves a stain from semen, cum, or blood on the sheets or elsewhere.
girl: My boyfriend and I had sex the other day when I was on my period and when I sat up on the bed I left some blood on the sheets.

friend: Eww! You Vagina Stamped his sheets!
IamAlimajによって 2009年06月06日(土)
A Girl Way To T-Bag
"You just got a vagina stamp on your forehead"
hailey_22_2011によって 2008年08月30日(土)