well-educated members of the upper-middle or upper class who freely express especially liberal opinions or judgments on current issues and events.
Origin of chattering class
First recorded in 1980–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the chattering classes informal, often derogatory the educated sections of society, considered as enjoying discussion of political, social, and cultural issues
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012