Its funny that you pee yourself and your balls high five each other, but it needs a little more.
Show the audience how you solved the problem. How after peeing you now shake your penis to unconciousness and force every drop out. How the people in the urinal next to you are questioning if everything was okay. How you accidentaly got carried away one time and got into a (penis) sword fight with the guy in the urinal next to you. How your penis is paying you back with erectile dysfunction and herpes - even though you've never cheated on your wife before. How it really itches and you've concluded that your penis is really good at paying you back or your wife is a whore and is sleeping with the new pool boy. How the new wet spots on your pants aren't urine, but actually just a bad case of herpes blisters spew. Then ask your male audience to raise their hands if they have erectile dysfunction or herpes too. Then have their female partners raise their hands if they were lieing. Then ask them to keep their hands down if they have Aids and when they all raise their hands tell them you feel better knowing they finally all admit to having erectile dysfunction and herpes too and that you are glad you arent the only one.
And thats how you make a bad joke, even worse!
And then you can make jokes about those internet dating sites for people with STDs, erectile disfunction, etc.