Definition of "buzzword"

Ideology is a [George Cabot] Lodge buzzword, as they say in business schools, the first word that sends many executives and students who would emulate them, into fury.

1972 May 14, Marylyn Bender, “Harvard's Brahmin Radical”, in The New York Times‎

There is great confusion and debate about what a blockchain even is—some people argue it’s become a meaningless buzzword—but the standard definition describes a shared, decentralized, cryptographically secure, immutable digital ledger.

2018 June 19, Gideon Lewis-Kraus, “Inside the Crypto World's Biggest Scandal”, in Wired‎