Definition: "Aruga," "Aruga" is a term in Spanish used to refer to a person who has become overly dependent or overly focused on one particular subject, even if it is not their primary interest. In context, it could suggest someone who is becoming more and more attached to a particular hobby, endeavor, activity, etc., with the result of becoming less interested in other areas of life. The term "aruga" originally referred to a person who was consumed by one task or concern.