The feeling of such an intense rage, slightly more ballistic than apeshit. This feeling is so intense, it is classified by RRAAAAAGEEEEE, usually happens to people who don't realise that it's just a fucking game. Like rage, you quit the game, but unlike normal rage, you punch holes in the walls and throw your controller at the TV.
Also could mean really, really extreme partying.
Video Game: GAME OVER FOR THE MILLIONTH TIME! Player: I FEEL RRAAAAAGEEEEE
Guy 1: SCHOOL'S OUT FOR SUMMER! PARTY AT MY PLACE! Guy 2: HELL YES LET'S RRAAAAAGEEEEE!