Formerly this effect was attributed to caffeine, but by thorough research in my coffee workshop, it became clear that it was a seperate, and previously undiscovered element, 'found' in caffeine as part of the caffeine molecule itself.

This new word, and element was not to be found on the internet as of August 8, 2007 except as a mis-spelled Trekkie term 'Hurrim'. So I now claim this to be 'my' word. If you are nice, you may use it with attribution to me, and with the proper definition!