Orwell described the villain of the piece as "the huge dump of worn-out metaphors which have lost all evocative power and are merely used because they save people the trouble of inventing phrases for themselves."
Orwell was right, of course ... but he was smarter than the rest of us, which is why we quote him. At the end of the day, can we say that a buzzword is a word which creates a "buzz"?

When people outside the buzz, buzz in, people in the buzz, buzz off. What is left behind is cliche ... like the Sands apres the Rat Pack.