The term 'wildly enthusiastic' can be summarized by two crossword solutions: GAGA (4 letters) and RABID (5 letters). GAGA is an informal term used to describe someone who is overly excited or enthusiastic. It is derived from the phrase 'going GAGA, ' which was popularized in the early 2000s. RABID, on the other hand, is an adjective that means extremely enthusiastic or passionate. It is often used to describe a person's intense enthusiasm for something. Both terms are used to describe someone who is wildly enthusiastic.