Made
popular by the
popular Chicago etiquette blog, Innocent Barstander.
-To publicly criticize someone whose public behavior is rude, obnoxious, or disruptive, often with comedic results.
-To exercise a deep passion for reinforcing proper etiquette in restaurants, bars, and clubs, such as how much to tip, how to dress, how loudly to speak when ordering drinks, etc. by chastising offenders.