Screenshot/NBC News

Vice President Joe Biden spoke last night at Harvard University's Institute of Politics — and he had an interesting response to one student, who introduced himself as the vice president of the student body.

"Ain't that a bitch?" Biden said in a lighthearted tone, to which the students immediately responded with raucous laughter and applause. "I mean — excuse me, the vice president thing? I mean, whoa. How do you feel about it now?"

Perhaps realizing that he had yet again made a public gaffe, Biden quickly walked it back. "I'm joking, I'm joking, I'm joking — best decision I ever made," he said, as the laughter continued. "I'm joking. That was a joke. That was a joke."

The student added: "I hope you love your job."

"I do, actually," the vice president responded. "I love the guy I work with."

Check out the video below, courtesy of NBC News. --Eric Kleefeld