Do you like to eat and drink — I mean, really like to eat and drink? Then you might be a glutton.
We all have our favorite foods and drinks, but some people are a little more into it than others — these people are gluttons. Someone who's a glutton because they just eat too much is different from a gourmet or gourmand, who enjoys only the best food. This word also is used in phrases like "glutton for punishment," which you might say about a student who asks for extra homework.