Chronic Yapping Disease (CYD) is a colloquial term used to describe a persistent and incessant tendency in individuals to engage in prolonged and often trivial conversations or discussions. This term is commonly employed in social contexts to characterize individuals who habitually exhibit excessive verbal expression without regard for the relevance or importance of their discourse.
"Tom has Chronic Yapping Disease (CYD); ask him about his weekend, and you'll get the director's cut. It's like living in a talk show!"