Okay, my math teacher told me this joke today. And it went down like this:
"What did the math teacher do when he was constipated?"
"what?"
"He worked it out with a pencil!"
But wait, that isn't the funniest bit...
When we went to tell my Korean friend this joke (I'm not being racist, her English isn't as good as everyone else's).
She was all like:
"what is constipated?"
So we explained, it took a very long time, but she got it eventually. And then she went to tell my other friend...
"Y'know what? I have a joke for you! Okay.... There was a math teacher and he couldn't poo, so he dug it out with a pencil! And then guess what happened?"
"what?"
"uh...."