Jiggy

Adjective

1. Resembling or suggesting a jig.
2. Crazy.

   "He's gone completely jiggy."

3. Jittery, fidgety, restless, excited.
4. Extravagant, wonderful, excellent, enjoyable, exciting, stylish, cool, successful.
5. Having fun, enjoying oneself totally; losing one's inhibitions, especially when dancing or performing to music.