Her trademark behavior (and the main object of her comedy) was that she would digress in a rambling and babbling fashion, especially when nervous or embarrassed.
During the sensorimotor learning phase, song production begins with highly variable sub-vocalizations called sub-song, which is akin to babbling in human infants.
Local police and a doctor are taken to her primitive cabin, and discover a seemingly half-crazed woman who speaks what appears to be unintelligible babbling.