If “kiss my a$$” was the de facto mantra of last week then “dirty liar” pretty much sums up this week.

Republican National Committee Chairman Reince Priebus got things rolling when he called Senate Majority Leader Harry Reid a “dirty liar ” for sharing grapevine scuttlebutt that Mitt Romney hadn’t paid taxes in 10 years. The Obama campaign in effect called the Romney campaign a “dirty liar” for its ad claiming the president wants to end welfare-to-work requirement. Boston hurled the tart descriptor at a pro-Obama super PAC for its ad suggesting that Romney was responsible for the cancer death of a man’s wife after Bain shut down his steel-plant employer. And “dirty liar” is basically what the right has been calling Romney ever since his campaign spokeswoman gave what a heretical defense against the pro-Obama ad.

Luckily, you don’t have to be a “dirty liar” to take the p-Op quiz. So, sharpen your pixels and get crackin’.