The act of rolling a blunt with the intent of getting high while acting like a child again, or being high and acting like a child; such as watching cartoons while high, or wanting to get high so the cartoons become more entertaining.
When you and your buddy are fucking a girl, she's blowing one and taking one, then on the count of 3 you and your busy yell "SCOOBY DOOBY DICK SWAP!" And you switch places and make her ask for Scooby snacks at the end.