Is there one? Chris asks the question, citing a collection of LL posts.
Though George W. Bush certainly took his share of (in my opinion) unfair criticism on this issue, I should point out that Howie Carr’s long-running Wizard of Uhs feature was focused on Ted Kennedy, and there’s been a fairly large-scale attempt to transfer this epithet to Barack Obama, which hasn’t really caught on, except in a diluted form as the Teleprompter Meme.