Stuff oneself is a phrase that is used to describe the act of eating a large amount of food in one sitting. Pigout (6 letters) is a slang term for overeating, GORGE (5 letters) is another term for eating a large amount of food, OVEREAT (7 letters) is to eat more than is necessary or healthy, eatalot (7 letters) is a phrase used to describe someone who eats a lot, and eatlikeapig (11 letters) is an expression used to describe someone who eats a lot in an uncontrolled manner.