Millie in “Unfinished Business”

Missy Grumpaloo was looking for her friend, the Something-Or-Other. She looked high and low, but all she could find were Whatcha-Ma-Callits and Whosa-Ma-Whatsits. When she finally found her friend, she realized it wasn't a Something-Or-Other at all, it was a mean Stinkaloo in disguise. And that's when Missy realized that not all Something-Or-Others are what they seem. Some of them are mean and unfriendly, and have stupid moms