>God, I love the word flapdoodle.
Apparently it's got new life in it. It's in the Urban Dictionary, right between flapdagging and flapdragon:
1. Flapdoodle
A person who is basically a yo-yo type, someone who just bounces back and forth and never decides what they want. Just as they think they have figured what they want, they draw you in, and as soon as you are drawn in, they retract. They are flap-happy. They are unstable individuals who pretend to be highly stable, pompously so. Beware of flapdoodles: they are usually full of emotional baggage.
2.Verb: To behave as a flapdoodle as in definition one.
http://www.urbandictionary.com/define.php?term=flapdoodle