Logorrhea
Logorrhea is a speech disorder. It is a psychological disorder where a person speaks continuously in gibberish or makes no real sense. It is a sign of an underlying mental disorder and needs psychiatric attention.
Logorrhea happens in many different psychiatric and neurological conditions. Some of these are glossolalia, schizophrenia, bipolar disorder, and schizoaffective disorder.
The term is sometimes used to talk about someone who is just very talkative. This is meant as a funny joke.
In popular culture
changeThe dramatic monologue Not I by Samuel Beckett is an example of logorrhea. So is Lucky's speech in the play Waiting for Godot.
In the 1999 E.W. Scripps National Spelling Bee, the spelling bee champion Nupur Lala won with the word logorrhea. Then a documentary, Spellbound, was made about the spelling bee.