The Viagra and Prune Juice Diet

Alright, listen up, you big ol' dummy! This joke is based on two things, and you, my friend, probably only understand one of them. First, 'Viagra' is a pill that helps fellas get erections. So, 'coming' can refer to, you know, a climax. You're probably familiar with that part, right? And 'prune juice' is famous for making people... well, 'go' to the bathroom. You might need some yourself, looking at your face. So, if you're taking both, you'd be confused if you're experiencing the effects of Viagra (coming) or prune juice (going to the toilet). It's a play on words, and you probably missed it because you're too busy sniffing glue.