After giving a great insult that totally makes your friend speechless you slap him with "Roll Credits" meaning that it's over, the audience is leaving and nothing else can be said. It would also be proper to use your hands to demonstrate the rolling of the credits on a screen.
This is also proper to use to term the ending of anything: a night out, a pickup game, or even a relationship"
Currency used on the famous Habbo Hotel. You can buy them on house phone (for the sneaky kids who put it all on their parents' phonebills) by text message (this is the method the Habbo Hotel staff use to recieve the money, send back a code in which the child can type into a hard-to-find box on the Hotel, press a button, and gain some credits. By this time the child has either forgotton the code and deleted the text, or forgotton what to do altogether) or Splash Plastic (for the peadophiles who remain the only ones who bother using this).
Unsuspecting child: I need credits, but I dont have any credit on my phone!
Staff: Why not use the house phone, and ring up three times so you get more credits, you won't have to pay a thing!
Ususpecting child: Ok!