A feeling that many girls get when they are on their period. It feels like your vagina is made out of lead and is so heavy that it is being weighed down which results in you feeling like you have to sit with your vagina as low to the ground as possible. It is extremely uncomfortable.
Hol: "Crap guys, I think I just started my period."
Mar: "Oh no girl! That sucks!"
Autumn: "Besta hope you don't get that lead vagina"