This guy starts a job at a tickle me Elmo factory on the production floor. Half hour into his shift his floor supervisor tells the manager "what's with this new guy? He's ripping the dolls at the crotch and stuffing two rocks in between the legs of each doll" the manager walks over to the new guy only to see a mess of red fabric and rocks at his station. The manager says to him "come to my office we have to talk" "did I do something wrong" he asks "no but I'm afraid you misunderstood the job description, you were suppose to give each doll 2 test tickels not 2 testicles"
Make your concerns your manager's concerns. Learn your manager, learn what he/she cares about and then relate his personality problems or performance with her goals... show how they don't match up. Don't tell your manager directly, this will only make you look like a "tattle tale," you have to spin it in such a way that your manager will want to fire him... if that helps.
You've only yourself to blame for that. For if it wasn't you who closed your funny club, these AWFUL jokes wouldn't exist.