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.
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.
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.