Why did my friend turn into a giant tooothbrush!?

Well first of all, the three headed blue pig told me to warn everyone I know about evil zombies coming to kill us all, so I told the toaster right away! And now the toaster is telling me that my arm is only a piece of celery! So I put some peanut butter on it and tried eating it, but right then and there my friend turned into a giant toothbrush and started doing the dougie. Why did this happen and how do I change him back.!