Painful Laughing
Laughing until you're out of breath and your face looks like it's been hit by a pancake. Usually happens when you're stoned and you hear a terrible joke.
My cousin laughed so hard he turned into a pancake human.
I was stoned and my friend told a joke about a duck in a bakery. I couldn't breathe.
My sister laughed so hard her face looked like a melted crayon.