verbal diarrhoea Meaning If someone has verbal diarrhoea, they cant stop talking. For example Janice has a real bad case of verbal diarrhoea. Its like shes afraid of silence and has to keep talking to block it out. I dont know if you could say hes got verbal diarrhoea, but Alan sure does talk a lot. #Idiom_of_the_Day ▬▬▬▬▬▬▬▬▬▬▬▬ ➠@PhrasalCards ➠@SlangWords ➠@IdiomsLand ➠@Vocabulix ➠@GrammarCards ➠@EnglishGate ➠@StoryPage 5.4K views11:02