Whereas a normal woman's vagina can only take so much punishment before becoming sore, a woman with a "double-jointed" vagina can have sex with multiple partners (4+) throughout the day with no ill effects.
Person 1: Where's Carrie?
Person 2: She is still in her room with her third guy of the day. Number four is on his way in an hour or so.
Person 1: Oh my gosh, Carrie has such a double-jointed vagina!
the crawl (often seen in horror movies) when someone (usually a dead person) crawls freakishly usually putting their feet in front of their head in the process (thus double-jointed). If you have seen the grudge, the grudge boy does the double-jointed-monkey-crawl down the stairs.
A:"Samara double-jointed-monkey-crawled up the well!"
B:"Freaky"
What a double jointed pussy is; when a woman’s vagina can expand to two times the size. A double jointed pussy can fit up to 4 penises. A woman can have intercourse with a double jointed pussy for up to 20 times a day.
Bro, I screwed a girl with a double jointed pussy, needles to say it was not tight.