Flapdoodle is a noun that refers to nonsense.

Our word of the day doesn’t appear to have an origin. It seems to have been an arbitrarily formed word that simply refers to nonsense or silliness. It’s pretty much always used in an informal context.

All that flapdoodle going on in our backyard distracted me from work. Although I have to admit, I’ve engaged in that kind of nonsense from time to time myself.