There are so many versions of this story, but it all ends up as a female named Mary who died some gruesome death or ended up with blood covering her, and if you're in your dark bathroom, Mary's face appears and you die or something .3.

Well, that's the version I know. xD

I thought she was just some crazy b*tch who liked to kill people by coming out of their bathroom mirrors

I used to do the Bloody Mary mirror thing at Camelsnot with Val. The bathrooms there are pitch-black, so...yeah. It's practically the perfect place to do it. The version I heard was that you had to go into a pitch-black bathroom, spin around three times and say "Bloody Mary" three times, and then you'd see her, a pale girl with blood all over her. Big surprise: NOTHING HAPPENED. Well...me and Val weren't really taking it seriously, ya know? It was just a big potty party to get out of boring class xD

Bwahaha, my little cousin heard about it for the first time, and really wanted to try it, but she was totally freaked out by that little possibility that it could happen, so my other cousin went to do it. Except the way we heard about it, you had to spin and say her name 13 times (unlucky, ya'know?). So my poor cousin was standing in the hallway with a few of my other cousins (family reunion), and they were all freaking out because they couldn't hear anything. My grandpa thought they were being weird, and so he knocked on the door and told my other cousin to come out, which she did, and she was all like, "Told you it wasn't true."

true story

...O_o