Verbal Diarrheaist Share definition Flag An individual that talks too much shit or when he or she speaks, she is full of shit! The 45th President of the United States is a verbal diarrheaist for his gaslighting and manipulation speeches. Verbal Diarrheaist by Creativelingo January 18, 2021 0 0 Get merch Get the Verbal Diarrheaist mug. Buy Now — $32.95 See more merch