When you cram your mouth with your favorite ice cream as quickly as you can, you are being gluttonous, that is, excessively greedy. Slow down.
Although gluttonous usually refers to the greedy consumption of food and drink, it can also be applied to overly hearty appetites of any kind, such as a "gluttonous love of money," or even a masochistic love of pain, as in the popular phrase "glutton for punishment." Gluttonous is always used critically, and in the Christian faith especially, gluttony is considered one of the seven deadly sins.