Snortingly-sarcastic term for a
shyster's/
villain's huffily acting like he's a conscientious
peaceable virtuous caring-about-fellow-humans person who shouldn't be suspected or criticized, when of course in reality he's just a self-centered a**h**e who's totally undeserving of any praise or respect.
A prime example of someone's deciding to use this shameless tactic would be in "
The Untouchables" with Kevin Costner --- when Elliot Ness angrily confronts Al Capone on the stairway and accuses him of murdering people and otherwise being a horrid crook, Capone indignantly lashes out right back at Ness for his "talking that way in front of
Capone's son"...
Ness's feelings would therefore be something like, Capone decided to go all "family man" on me --- how infuriatingly disgusting!
