At 14:57 - 15:10 you'll find the first known use (the first known to me, at any rate) of "ShamWow" in an extended sense:
Lexicographers, please take note!
Obama, to his credit, even seems to know what Jon Stewart is talking about. I didn't, so I Googled "ShamWow" to be able to give you a full report. Backgrounder here: