A nickname for President Barack Obama (Pres. B.O.), generally used by people who can't face the fact that a black man has become president of the United States.
"By the time PresBO gets finished, everyone will be taxed so much that they'll have to go on welfare, and the middle class will be wiped out, and the only people who can eat will be the ones with guns! You'll have to join a gang to survive! All of this just because you liberals had to vote for that — that — that ..."