They go up to the bartender and say, "Give us two asshurts."
The bartender says, "How do you make an asshurt?"
The Olsen twins say, "Well, Bob Saget hands us a chocolate milk he just made, and three hours later we wake up and our ass hurts."

Too funny, Gilbert Godfrey is hilarious, and that was a joke he told at the Bob Saget Comedy Central Roast.
Made me tear up.