This guy ate two large pizzas in under 20 minutes. He didn't eat for two days prior. The deal was he could leave up to 10 crusts.
From: http://www.youtube.com/watch?v=yhjwlD6np2E
SupersizedMeals.com
http://www.supersizedmeals.com/food/article.php/20080707-2_Large_Pizzas_in_20_Minutes