the chattering classes      
noun [ plural ] UK informal disapproving uk/ˈtʃæt.ə.rɪŋ ˌklɑː.sɪz / us/ˈtʃæt̬.ɚ.ɪŋ ˌklæs.ɪz /
 闲聊阶层(指喜爱谈论政治、文化、社会问题,对各种问题发表意见的受过良好教育的中产阶级)
well-educated middle-class people who enjoy discussing political, cultural, and social matters and who express opinions on a lot of subjects