Verb; Graping is basically a step up of raping. When you grape somebody you become ecstatic and the feeling can only be related to sticking your pee pee inside of your opponents bunghole. The best part about graping somebody is once you've done it, you get to troll your foe by telling them how owned they got!
Guy 1: How did your date go the other night?..
Guy 2: I showed her my penis and she just laughed.. I got totally graped!