Repetitive dream I had?

When I was younger I repeatedly had this dream where I was on a catapult-like platform with a bunch of clones. We're all facing Muriel from the courage the cowardly dog show. It felt as though there was a countdown to escape, I had a distinct feeling that I had to avoid the inevitable. In the end the platform shot us all toward muriel and she opened her mouth to show a gaping gullet with hundreds of pointy, shark-like teeth. After she ate us, the dream would start all over again and I'd have to find a way to escape. Per night that I had this dream it repeated about 10 times. Sometimes in the corner there was Eustace watching tv in his chair. Interpretation or explanation would be greatly appreciated