I dont know if he is here or not but I challenge Jakester.
Yo Momma so fat, when the waiter gave her the menu, she took a look at it, gave it back to him and said "OK"
Peter (when he's hungover): This sucks worse than that time I went to that museum. (Flashback to childhood, standing in front of dinosaur skeletons.)
Peter (as a child): Why did all the dinosaurs die?
Man at Museum: Because you touch yourself at night.