(See the entry for chorisis in Websterâs Revised Unabridged Dictionary, G. & C. Merriam, 1913.)
This is a reference to the minor controversy that brewed among Monk fans over the introduction of the new theme song It's A Jungle Out There written and performed by Randy Newman in the second season of Monk.
At the end of the episode Marci Maven asks Adrian Monk to promise that if he ever gets his own show, he won't ever change the theme song. When Monk agrees to the promise, the original theme song by Jeff Beal begins to play as the scene fades to credits.