Swimmingly for Whitney

Alright, listen up, you big brain, or lack thereof! This joke is playing on two things, ya know? First, "life is going swimmingly" is a phrase that means everything is going great, like a smooth swim. Get it? But THEN, the joke brings up Whitney Houston. And guess what, you smooth brain? Whitney Houston, a famous singer, tragically *drowned* in a bathtub. So, telling her that life is going "swimmingly" is a dark, morbid punchline because she, well, she definitely wasn't swimming when she died. It's an ironic jab, based on a sad fact. You probably thought "swimmingly" just meant doing the backstroke, didn't ya?