The obama excuse is best used to get out of situations when someone accuses you of racism like in a traffic stop.
Ermey: " How about you pick them "cotton" socks boy?"
Tyrone: "what da fuck?"
news reporter: A walmart employee is sueing walmart for 5 million dollars in damages due to racist comments and harrasment by a manager.
Lawyer: " By the holly bible of god, Mr. Ermey Are you racist towards black people?"
Ermey: " Not me, I voted for obama!"
Lawyer: "see ,see your honor, my client is not racist he voted for obama, see!!"
greedy lawyer:"The obama excuse saved walmart once agian in court, yea!"
Ermey: " No way, I voted for Obama and he is black!"