It made me feel like a pickle!

From CNN.com:

The Clintons received a standing ovation from guests in the East Room of the executive mansion before the paintings by artist Simmie Knox were revealed. "President Clinton and Sen. Clinton, welcome home," Bush said. Clinton said it was a great honor for him, his wife -- now a U.S. senator from New York -- and their family to return to "this wonderful place we called home for eight years." Bush's introduction, he said, "made me feel like a pickle stepping into history."

I have absolutely no idea what that means. Anyone?