Wumby Flappy

Anya has gotten very into the Knuffle Bunny series of kids' books by Mo Willems and the first book is about Trixie's first words (which are "knuffle bunny" FTR) and prior to saying actual words, she utters "Wumby flappy". I think Baz has heard this story too many times and is trying to act it out. His favorite pastime lately is to stop whatever he's doing and flap his arms as quickly as possible. It always reminds me of that story and it looks so cute.