EXTREMELY ENTHUSIASTIC can be described as having a level of enthusiasm that is beyond the norm. This can be expressed in different ways, such as being 'CRAZY, ' 'GAGA, ' or 'RABID.' The term 'CRAZY' refers to someone who is behaving in an irrational or unpredictable manner. 'GAGA' is an expression of extreme admiration or enthusiasm, usually used to describe someone who is overly excited. Lastly, 'RABID' is an adjective used to describe someone who is extremely passionate or enthusiastic about something. All three words can be used to describe someone who is EXTREMELY ENTHUSIASTIC.