We're still having fun, and we'll steal the wall!

The story:

I was singing this loudly in the back of the car with my brother, who I'd convinced to sing the same lyrics as I was. I guess I knew deep down that this couldn't possibly be right, since it makes no sense whatsoever, but I couldn't think of what else it could be. Once my parents had stopped laughing, my mom enlightened us. I still prefer my version, though.