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Any imitation of the absorbant cloth "ShamWow."
I bought this Super Shammy at the fair and it doesn't absorb SHIT. Total ScamWow, dawg.
by Michelle Bop January 20, 2009
Infomercials. They may not all be complete scams but the products sure dont work as well as they do in the comercial.

From the product commercial, Sham Wow.
I bought my sham wow...it was a scam wow
by Its_boobookittyfuck March 18, 2009