OK, so I think some genius figured out how to hack my Recent Googles feature. There is no content on my site that matches:

"Santorum lube fecal matter anal sex"

Yet, there's a referer_log entry indicating that Google referred just such a search to my site (to the Programming category. I looked up the IP address of the searcher, and determined that it's from New Jersey. The genius must have faked referer headers to my site to make it look as though content matching the search was served from here. A cute trick.