bulimia nervosa

type of eating disorder in which one compulsively overeats (most common among teenage girls)

Bulimia nervosa, commonly known as bulimia, is an eating disorder and psychological condition in which the subject engages in recurrent binge eating followed by feelings of guilt, depression, and self-condemnation and intentional purging to compensate for the excessive eating, usually to prevent weight gain (see anorexia nervosa). Purging can take the form of vomiting, fasting, inappropriate use of laxatives, enemas, diuretics or other medication, or excessive physical exercise. The cycle damages bodily organs. Bulimia is common especially among young women of normal or nearly normal weight.
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Bulimia nervosa is a serious and sometimes life-threatening eating disorder affecting mainly young women. [more]Bulimia nervosa - Community and Resources

That eating disorder characterized by recurrent binge eating; recurrent willful vomiting and/or other recurrent inappropriate compensatory measures to prevent weight gain (e.g., laxative abuse, diuretic abuse, or overexercising); and an excessive influence of body weight or shape on self-evaluation.

Bulimia nervosa is an eating disorder characterized by excessive eating. People who have bulimia will eat an excessive amount of food in a single episode and almost immediately make themselves vomit or use laxatives or diuretics (water pills) to get rid of the food in their bodies. This behavior often is referred to as the "binge/purge" cycle. Like people with anorexia, people with bulimia have an intense fear of gaining weight.