The term 'Go Gaga' is an expression used to describe someone who is overly excited or enthusiastic. The crossword solutions for this term are RAVE (4 letters), SWOON (5 letters), and FLIP (4 letters). RAVE is a verb meaning to express great enthusiasm or admiration for something. SWOON is a verb meaning to become suddenly weak, faint, or overwhelmed with emotion. FLIP is a verb meaning to turn over or cause to turn over with a sudden quick movement. All three words can be used to describe someone who is going gaga.