I just submitted the following word to the "Urban Dictionary". They recently added "Katherine Harris Crazy", so let's see if they add this:
DEFINITION: As crazy as Howard Dean; acting like Howard Dean; screaming, gesticulating like Howard Dean.
EXAMPLE: "That homeless man should be in a mental hospital. He's acting more and more Deanuts every day."
There appears to be only one previous example, and that was on Dean's own site, and it appears to have been used in a quite different fashion: ...Kreme do