A vague old-fashioned term used by aristocrats and people who believe they are better than others. May mean being raised well: courteous, polite, part other things, etc. Few know what the term actually means because everyone who uses it defines it differently to criticize the lower-class. But apparently it is one of those things that you can only understand if you have it.
Old person: "Hillary Clinton lacks good breeding."
Random guy: "What does that even mean?"
Old person: "You'd understand it."
Random guy: "... bitch."
Random guy: "What does that even mean?"
Old person: "You'd understand it."
Random guy: "... bitch."
by ThePrometheusMan May 21, 2008