You skip the punchline.
Don't worry, they will tell you.
Their last names.
Because, 7 8 9...
You skip the flat ones.
The punchline
A punchline.
Please let me know... I have a terrible sense of humor!
I have no idea, but this looks like a good joke. So post your proposals in comments.
Two pies to the face and one somewhere in a field in Pennsylvania.
A monkey. (p.s. I have a wonderful, terrible love for bad jokes)