“In the real world, Halloween is when kids dress up in costumes and beg for candy. In Girl World, Halloween is the one day a year when a girl can dress up like a total slut and no other girls can say anything else about it.” -Cady
National Have sex with a ghost day. If you are a single perverted man than this is the lucky day you will always have someone watching your intense boner all day if you do this.
It is Halloween and national hug your crush, best freind, or girlfreind day. You can do because they won't know who it is because you will be all dressed up.