Check it out: A jargon-checker called, beautifully, “Bullfighter“.
It just gives me a warm, I’m-not-alone feeling.
I haven’t tried it out yet. I’m just happy someone developed it. And it’s free.
[Postscript, Sept. 2014: It is with deep sadness that I discover the Bullfighter link is broken. It used to be supported by a big consulting firm, but then they dropped it and no-one picked it up, which is a shame. I think the plug-in stopped working circa 2011. The people who wrote the content for the plug-in also wrote this book, which is still available: Why Business People Speak Like Idiots.]