text: "affectedly or excessively delicate, refined, or nice: precious manners." Used in that sense by the Saturday Night Live Church Lady. 
  
  "Created and played by Dana Carvey, The Church Lady is a mature woman named “Enid Strict,” who is the uptight, smug and pious host of her own talk show, Church Chat. Enid is a spoof of “holier-than-thou” Christian churchgoers."
  https://en.wikipedia.org/wiki/The_Church_Lady
  
  Us working-class folks don't care what you middle-class folks consider classy. Or precious. Just another way of trying to keep us in line.