Kitty: (to the Senator's high school girlfriend) We all know how guy's are at that age. They're immature and grabby. Was he grabby? I bet he was.
high school girlfriend: Don't you work for him?
Kitty: Yeah-yeah. But nobody-nobody is that perfect. Not even Mr. McSainthood.
This is Kitty's play on the now well-known "Mc" label appearing often in another ABC hit show, Grey's Anatomy. Recently dubbed "McLabels" in a Grey's Anatomy recap special hosted by Jeffrey Dean Morgan titled "Every Moment Counts", they are generally used when referring to the male gender in flirty, amusing, and/or sarcastic ways.