Letterman: “What about this bonehead, Rush Limbaugh?”

David Letterman joked with CBS News anchor Katie Couric who rolled over with laughter when Letterman referred to Rush Limbaugh as a “bonehead” and described his shirt-unbuttoned appearance at the recent CPAC conference as that of an “East European gangster.”

Letterman, regarding Limbaugh’s unbuttoned shirt: “Oooh … let’s see a little flesh.”