Tiny Dick, Big Problems

Alright listen up, dummy. This joke is saying if you engage in oral sex with someone who has a small penis, you'll get an STD. But, like, STDs don't care about size, you uncultured swine. Here is a fun fact for you. Your sense of smell is so good, you can detect one-trillion different odors, but you can't detect a joke, you imbecile.