Bert hears the phone ringing inside a basket, and asks Ernie to answer it. Ernie goes through the basket, and finds a banana. He pretends it's a phone, and gives it to Bert to talk on. Ernie answers the real phone, and tells the caller that Bert can't come to the phone because he's talking on the banana.
Cookie Monster imagines himself as a king who wants the biggest cookie his servants can get.