Some co-workers at a Fortune 200 company I used to work for were standing around talking one day about the stupid corporate buzzwords we used to hear at sales and marketing meetings ("synergy" and "zeitgeist" come to mind), when my next door cube neighbor came up with an idea. She and her husband both worked at the company in different departments. She said they wanted to introduce the word "beneful" as a new buzzword and see if it would stick.
In case you don't know, Beneful is the name of a dog food.
So she and her husband started inserting the word into conversations during these meetings. Darned if it didn't work. She said she heard several other people start using it who weren't in on the joke.