The lip flubby
You know that thing people do when they mimic insanity, the thing that provides a running gag in this film? It involves running one's index finger up and down over one's lips to make a noise that sounds like "beedeebeedeebeedeebee." A friend has coined a term for this bit of business: the "lip flubby." We need a term for this thing, so please help spread it.