happy-clappy
adj.— «You don’t have to be a happy-clappy Silicon Valley hippie to see that computer-driven virtual reality is set to upstage Euro Disney before the millennium. » —“In This Sterile Diorama, Life Is but a Theme” by Stephen Bayley International Herald Tribune Apr. 9, 1992. (source: Double-Tongued Dictionary)
Further reading
A listener in Lorain, Ohio, wonders about the origin of the terms happy and happiness. Both come from an older word hap, meaning “chance” or “luck,” also the source of happen, mishap, hapless, happenstance, happy-go-lucky, and perhaps. Language...
Did we stop referring to young urban professionals as yuppies? A listener in Madison, Wisconsin, says his younger co-workers told him they’d never heard of the word. The use of the word yuppie peaked around 1990, and has dramatically dropped ever...