Alternate or mis-spelling of rape, usually used in a comedy context, particularly when relating to gaming. Possibly American in origin, though also used in the UK.
Erotic rape fantasies. They can include roleplay, fiction, or any other way to live out fantasies without acting on them. It's a deliberatemisspelling of "rape" but does not mean actual rape. These fantasies are especially common in females and are very different from real rape.
Girl: You should raep me sometime.
Boy: Wha-what?
Girl: We just have sex but I'm going to pretend I don't want it but don't stop no matter how much I beg and fight unless I say (insert safeword here).
I read this awesome fanfiction where this girl got raeped and it was so hot.
Stands for Really Annoyed Excommunicated People. It's a thread on Gaia Online located in the Chatterbox, where 'Regs' don't exist. Created in January 09, a select few can call themselves Raepers, these include: B A N N 3 D - D, A Less Trite Identity, Ezuka, Bizreal, Dollie Slaughters, Buriko, The Magical Peanut Tree, etc...
"Man, I'm so sick of all these Regs. Anyone could be one now a days."