What term describes indulging in something to excess, such as eating or drinking?

The term that describes indulging in something to excess, such as eating or drinking, is "binge." Bingeing typically refers to a short period of excessive engagement in a behavior, often characterized by a lack of control. This term is commonly associated with binge eating or binge drinking, indicating a pattern where an individual consumes significantly more than usual in a single occasion.

While the other terms might relate to behaviors or patterns of consumption, they do not specifically capture the essence of excessive indulgence in the same direct way as "binge." A "habit" implies a regular practice or routine, which doesn’t necessarily denote excess. "Cluster" refers to a grouping or collection, and "excess" indicates an amount that is more than necessary but lacks the specific context of indulgence in a fleeting, uncontrolled manner. Thus, "binge" stands out as the most accurate term to define the behavior of indulging excessively.