Thread: What is the rest of John Bender's joke from Breakfast Club?

I seriously want to know.

Does anyone know or is it just one of those things where it's supposed to leave you in suspense?

It's been a long time since I have seen the movie, what was the joke?

According to the trivia section on www.imdb.com...

The joke that Bender tells but never finishes (while crawling through the ceiling) actually has no punchline. According to Judd Nelson, he ad-libbed the line. Originally, he was supposed to tell a joke that would end when he came back into the library and said, "Forgot my pencil", but no one could come up with a joke for that punchline.