Purging of the psyche.
Though from time to time it can be beneficial to cleanse the mind of useless build-up, those known to freely spew forth folderal may suffer from psychobulimia. Excessive mental elimination in the form of irrelevant and violently distractable detail, hours of disjointed semantic, or garbled-to-poetic non-sequitor may be delivered by the PB at any moment, without warning, often on multiple occasions. Most PBs suffer from inflamed synapses, brought on by continual and often highly charged mental purging.
"...aretha in the blues dunes--Pluto with the high crack laugh & rambling aretha--a menace to president as he was jokingly called--go--yea! & the seniority complex disowning you . . . Lear looking in the window dangerous & dragging a mountain." - an excerpt from Tarantula, a collection of psychobulimia by Bob Dylan.