yawn
n.— «Now a new generation of the seriously rich has emerged, but with a difference: the ostentation has gone. The new breed is self-made, socially aware, concerned about the planet and gives a lot of money to charity. They are the “Yawns”—young and wealthy but normal.» —“ Young rich are more Yawn than yuppie” by Iain Dey, Jasper Copping Telegraph (United Kingdom) June 24, 2007. (source: Double-Tongued Dictionary)
Further reading
While reading Great Expectations (Bookshop|Amazon) by Charles Dickens, a listener in Arlington, Texas, is surprised when one of the characters inherits some money, which Dickens describes as a cool four thousand. Were they really using cool that way...
Understanding the varieties of conversational styles can mean the difference between feeling you’re understood and being insulted. “High-involvement” speakers interrupt or talk along with someone else to signal their enthusiasm...