Stormy Cloud Departure

Alright, listen up, you big lug! You're so dense, you probably think 'cumulus' is a type of root vegetable. This joke, you see, is calling someone a huge downer. Imagine a stormy cloud, all dark and gloomy, blocking the sun. Nobody likes that, right? But then, *poof*, the cloud goes away, and suddenly it's a beautiful, sunny day. So, what the joke is saying, you genius, is that the person it's directed at is like that stormy cloud. Their presence makes things bad, and their absence makes things good. It's a classic roast, meaning it's a funny way to tell someone they're a pain in the butt. You're probably used to hearing this about yourself, aren't you, pal?