Dithyramb
n.
A frenzied, impassioned choric hymn and dance of ancient Greece in honor of Dionysus.
An irregular poetic expression suggestive of the ancient Greek dithyramb.
A wildly enthusiastic speech or piece of writing.

Dithyrambic
a.
Pertaining to, or resembling, a dithyramb; wild and boisterous.

Now I'm going off to have a massage ...